Thanks again to NTT Research for sponsoring this video! You can join them virtually for their Upgrade 2021 event where they'll even be demoing a CIM: unlockr.co/NTTUpgrade2021
Quantum computers has changed are reality. I had a dream where I was at the manor doing the dishes. It n sent my mind back 2 the bed. Like time travel. It wasn't a dream though
This cleared up a couple things, but I'm still confused about a lot. I'm particularly interested in the actual physical mechanisms that are taking place. How exactly are the electrons being set in place and measured? What is actually physically happening to make calculations?
for that u must clearly understand the young's double slit experiment ,de broglies hypothisis as well as its proves and experiments, wave nature of electron , difference between conscious and sub-conscious view of electron. thats when u know whats happening inside
thanks. I don't have the perspicacity to understand all this stuff but at least I can now believe that quantum computers are probably real!@@amruthmessi1025
A quantum program consists of setting up the qubits (like electrons) in a known state, then forcing certain interactions between the electrons according to your algorithm , allowing the electrons to interact (which is the calculation part), and then reading out the final state of your qubits. The calculation is done via the interactions of the qubits according to the laws of quantum mechanics. They use the term "gates" (like in conventional digital logic) to describe operations on qubits or groups of qubits. To interact with the qubits, such as electrons, they send in precise bursts of radio frequency energy to "rotate" the electrons into the desired state, and use a similar process to "read" the quantum state at the end (destroying the quantum state in the process).
He didnt explain shit because he doesnt understand it at all. How would the superposition require 4 bits to describe? That IS the difference and you just said it like its self explanitory. Hes just reading an excyclopedia.
As any other video on the topic you explain superposition and entanglement and then abracadabra the right result appears out of nowhere. What do these things have to do with synchronizing (how) connected (how) particles (electrons?) that are calibrated (how) to encode the distance between the cities (how). Then they synchronize and show (how) the shortest path solution (how)????
@@jorisbonson386nobody with just a computer science degree would understand quantum computing at the first glance because this works based on the physics principles.
I purposely went looking for "quantum computers for dummies" so I can get a better understanding of it. I may be more confused than I was before. I should have looked for "quantum computers for people with one brain cell."
This is the first video of yours I've watched and it was epic. I've see a lot of articles on quantum computing lately but science is a hobby and not my day job, so it was great to find a video that could lay this out in a way that was easy to grasp.
When it comes to quantum computing, I really like the "traveling salesman." Another good visualization is a person making their way through a maze, where all the potential paths are calculated at once to find the perfect path. Such a cool idea.
Except for the fact that you have to design an equation that encompasses everything there is to be in compass than whatever you're trying to measure. Trying to boil most of the real problems down in life don't need no damn quantum computer. They are simple and these computers and the solutions that they are purported to have are already trash. With all the money we have invested in this trash we could have done built this world into what it should already be. This is embarrassing. Can't you see more information isn't any more helpful to The human experience when you are avoiding the actual human in the experience. Measure their quantum position but they don't take into account before or after and seeing how there's this thing called The butterfly effect even cares what the superposition is right now because the thing is so complex you can't tell whether that's true one atomic time unit before or after. So how the hell are you going to take her computer answer and claim that to be the answer just off of a computer saying this is it. It'll be easier if we just take the AI quantum computer that you already have called yourself out into the fucking world and explore it. Then all this technology would make a lot more sense and be a lot more helpful because you have some actual real knowledge of the world. The money wasted on this technology innovation is embarrassing when all it does is distract us from our entire life and enslave Us in this piece of shit system where nobody is okay with all the war yet our country just sent a hundred billion dollars to Ukraine for war. We send a hundred million dollars to Turkey after their entire country got destroyed in 50,000 + people died in an instant. And you are worried about some stupid quantum computing. What a fucking embarrassment. All the power in the world isn't going to satiate our greedy slime Lord's evidently. With a hundred billion dollars you could literally build a home for every single homeless person in America. And that wouldn't even cost more than twenty billion. Take all that fucking war energy and go spend it rebuilding the world and maybe they wouldn't hate you. So scared of terrorism yet you are terrorists. All gung-ho to kill the Nazis yet looks like you're worse than the Nazis. Quantum computing yet the Americans are going to be okay with starving one or two billion people to death. Congratulations people of Earth. Give yourselves a round of applause.
I like the way this guy teaches. Ive heard of the concept of "quantum tunneling" my whole life and can now easily explain it to someone. The ball bouncing off the wall example helped a lot.
I think the ball bouncing off the wall is very misleading. I mean how does a particle (electron) “magically” go through an atom? Instead think about the electron and the atom as waves and how they would interact. That’s the better way to understand Quantum mechanics.
@@2204JCMI already know this is going to sound stupid but are these waves you talk about the same thing as "strings" that I keep hearing about? This is all so hard for me to understand. The quantum tunneling example with the ball was great, the visualization give me a tiny clue, & your mention of waves was an improvement for me. I am also puzzled by what is called the "string theory". Are these strings more like waves? When these guys talk about strings, I literally see strings LOL & nothing makes sense. Then I read that the string theory has nothing to do with quantum mechanics & sometimes I read that it has everything to do with it. Lately a channel I watched said that the JWST (James Webb Space Telescope) had just debunked the "Big Bang" but the presenter kept barreling through the rest of his presentation using the term "Big Bang" LOL. I've also found that that there is a great variability in the levels of explanations of the different channels. Sometimes it all sounds like a lot of snake oil to me LOL.
What did this have to do with quantum computing though? Never made the connection to how that applied to the topic other than a random fact about quantum physics
What a great overall look at Quantum principles' basic theory plus applications. I enjoyed this BIG PICTURE vid a lot. I grew up with Particle physics and quantum mechanics was just coming onto the scene when I got older. Nice to have some of my information confirmed about Quantum mechanics and to have simple ways to THINK about it all. Our world is indeed changing quickly, and keeping up is as much about the details as it is about the big picture. Thanks for the Big Picture, David!
It's strange how US and UK English differ. In UK English a dope means someone who is really stupid hence why I was initially shocked when I read the comment. On the subject of computing my Dad met Alan Turing when the latter was working on the Manchester Mark One computer. A far cry from Quantum computing though.
First video ive seen of yours, but not the first video on quantum mechanics or quantum computers. Im a computer engineer and I love this video, especially the cuts of just cityscape. You give a small amount of time to reflect what is gonna be explained. Genius! And the video has a feel like that of walking and talking with an old friend 😄
Very useful, we need another video about the other uses of Quantum Computer in decoding , cyber security , its expected effect in cryptology and crypto currencies besides medical , pharmaceutical and physical uses. Thanks 🙏.
That's why crypto can under go hard fork just in case of new insecurity. I have been doing research on this as am a huge fan of Crypto investment. The next upgrade in eth i.e ETH 3.0 will be quantum computer proof, and Bitcoin will be capable of going through a hard fork if SHA 256 becomes vulnerable to quantum computer. But currently only public keys before 2010 which is just one quarter the current btc addresses are vulnerable to quantum computer. More studies is going on..
This was a great starter for me. I've been trying to figure it out on my own, but I'm not a math or science guy and I'm just old. LOL. I'm gonna watch it a couple more times. My original programming effort literally involved wiring punch boards... yes, before punch cards... and building a Radio Shack computer. I want to see what the hardware looks like vs a "regular" computer, i.e. the chips, etc.
Thank you very much for going down to the level how Qbits work. Very simple explanation using 2 bits (classical) and 2 Qbits and then 3 bits. Honestly, I got stuck here, rewinding this portion of video for almost an hour, all of a sudden I understood it. Now, this portion of video is etched in my brain (BrainBits !!!).Rest all is simple to know the enormity of QC. No video talks these fundamentals except they extolling Quantum computing and future stuff. I very much appreciate your way of explanation buddy !!! Keep coming with more!!
Great video but wait, I'm getting caught up bigly at 5:33. Why are four bits needed to represent the superposition? What is the extra information encoded by the superposition? It's still only two bits right?
So basically the Quantum computer has supersition, where a traditional computer does not. Where a traditional computer can register a 1 OR a 0, the Quantum computer can simultaneously measure a 1 AND 0 until final observation. Meaning the bits, "qubits," or amount of potential calculations, it can perform at a time, increase exponentially over that of a regular computer processor... I'm not so deep into science, and still have a lot to learn about computers and quantum mechanics, but I hope I've got the idea correctly. Thanks for keeping it simple. Good video.
This certainly opened my mind to this concept, at least further than I understood it before. I just have so many questions popping now. How to harness this? Wouldn't the information be random? How would you get the actual outcome you are looking for? Even when they sort of sync up, are they synced to what they should be synced to? I don't know if I am even making sense now, my mind is going quantum.
I only have one question. Having recently looked at Schrodinger's Cat, I have now reached the conclusion that it has to be re-written and for very good reasons. At the time that Schrodinger was around the only term being used was the "Universe" however we have moved on since to discover actually that there is a "Multiverse" and perhaps more so beyond that. Why this matters is because it would mean that "Super Position" would technically have to be automatically upgraded to "Hyper Position" and whilst this may only be a unknown and untested theory the logic, is deafeningly sound. Now in some fields of science we would have terms of a "Super - Super Position" and whilst that can to be feasible it cannot therefore be ruled out that there could be a combination of even a "Hyper Super Position" or more which we still need to discover. I have been contemplating the "Parallel Universe" for some decades now, but upon reflection the existence of such is a given and again becomes limitless, to the same level of "Quantum Entanglement" which whilst may be spooky, is equally very real. Whilst for many this borders on what some of us may refer to as the "Twilight Zone" it will eventually be not just proven but established and founded as real building blocks of science. As a race of people who wish to understand the complexity of the Cosmos, we need to lose some of the baggage that the world of science and academia has collected along the way. As some of what we have is no longer applicable, or has been a red herring, and worse. So perhaps Academia needs to do a bit of growing up if it wants a seat at the top table.
Yes - as mentioned at the start of the video, quantum behavior is radically different from most peoples' common understanding of their perceived notion of limits in the physical world. Superposition, quantum entanglement and quantum tunneling concepts have already resulted in the design and construction of 'off the shelf' quantum computer systems. The general public just hasn't been able to wrap their minds around these new paradigms, since they appear so counter-intuitive to most people. After all, 'Introduction to quantum mechanics 101' isn't yet taught in most high schools or colleges. Fortunately, UA-cam channels host a slew of videos explaining how everything in this quantum universe operates. It just requires many cups of coffee and sufficient head scratching.
9:15 I am exponentially skeptical about this. The only known speedup a quantum computer may provide to solving the TSP problem (at least if we want the exact solution), is by using the so called "quantum minimum finding" algorithm which takes TSP from being O*(2^n) to O*(1.728^n) on a quantum computer. In other words, Grovers algorithm is the only quantum advantage to these NP-HARD problems!
If you put my comprehension of quantum computing on a scale of 1-100 it was at a 5 at the beginning of this video. Now I think I’m up to maybe a Hmm. 15 ?? Lol. Thanks so much !!
Interesting, so with quantum computing using parallel q-bits which can be at other places simultaneously, hypothetically, if an online game was created using quantum computing, couldn't one play online games with others living in parallel realities or alternate Earths via the quantum internet?
Will there be a quantum cloud? Or can they use the one that already exists? I wonder what programming languages will look like. Or will artificial intelligence have advanced so far that quantum computers will be programmed by AI robots?
Love it subbed!!! I've been trying to explain this to so many people but all I can do is absorb knowledge I can't explain jack. Thank you I'm saving this vid! Now my explanation will simply be a link click 😁
I subscribed to your channel after watching this video about Quantum Computer. At the moment, this is the most understandable video so far. The videos about Quantum Computer out there are either not related or relevant to me, or I am not smart enough to understand them, Thank you for your work! Keep producing videos like this one!
That was very well explained. I have seen a lot of programs that explain how they work but never real practical applications.....I commend you on adding that portion....The why should I care piece....Good work!
My wife is brilliant..... at icing. I bet she has no idea just how quantumly good she is at choosing the correct nozzle! Excellent vid, as you can see I nearly got there. Thanks.
Damn. This video looks professionally made, it deserves more recognition. Esp. bc after watching countless videos trying to understand QC, i understand
Thanks a lot. Best explanation so far. How do know that the optimisation process between the data is for the problem that you actually want to solve and not the optimisation for some other relationship?
This is the 5th video I have seen on understanding quantum computers. They all come down to the same thing:. Just because it seems strange and we can't make it work doesn't mean it's useless. This emperor has no clothes.
Thank you. The answer is that we need all the explanations we can get on quantum computers, in order to understand them. No single attempt will be good enough. It' a concept that needs all the explanations it can get. The breakthrough we need is superconductors at room temperature.
I'm a little above the average bear when it comes to understanding most things Quantum, and you did a fantastic job explaining quantum computers without spending an hour going way far down the 'Rabbit Hole'. Great job!
I have a question about the ball popping out on the other side of the wall. Do scientists know that the ball is the same ball that went in? Or was it simply a ball that got displaced since everything is made up of balls?
A quantum TV remote would be quite useful. No more worrying about being in line of sight for it to work. Plus i can potentially watch all channels at once.
I still don't understand how it doesn't have a position until someone studies It. And if that's true, how do we even know if that's true if we can't know until we study it. It's so confusing and I will never understand that.
Very nice presentation, good on 2 levels: technical correctness, and aesthetic enhancements recognized by viewers sensitive to "the arts" with visual, audio and psych-sensitive style.
A very welldone educational video about a very sophisticated/complicated topic. Personaly I got more insigth in the topic thanks to your video. And I have seen many videos and I have read many articles about quantum computing. Your explanations and presentation are among the best, i have seen. So super video 👌
Terrific Job, simplifying where you can to get the main issues across. Electrons don’t really spin, but they do have magnetic moments of inertia as if they did :-)😊
I just watched a StarTalk on quantum computing, and they inspired my questions, which make sense to ask here: 1. As circuits have gotten smaller, there is a chance that electrical signals can interfere with each other and results need to be error corrected (ECC RAM). When you are talking about accurately calculating exponentially larger positions, how could you build such a device that wouldn’t have innumerable errors in it? How would we be able to get around that? 2. Current computing technology uses addressable memory. With the sheer number of quantum particles, how can you program such a monstrous amount of data and how can you identify which superbits (my term) contain the answer and how do you get that back into understandable output?
I only understood the term "addressable memory". Do quantum computers have "addressable memory"? Wouldn't they have to have addressable memory to be "programmable"?
The salesman problem is also akin to what a computer would have to do In order to brute force encryption. The computer would systematically try every possible combination of keys in order to find the right one. A quantum computer would theoretically be able to break encryption by being able to attempt billions of key combinations in an instant.
I have been read articles and watched a lot of videos on how quantum computer works and didn’t get it. But for me this video is the best or the closest explanation about quantum computer. At least what I get is: basically we don’t know (yet) how quantum mechanics / quantum computer works, but we can make it, run it and observe the result which proven to be correct all the time by the experiment. For now, we just need to ignore how it actually works, just focus on building it and just use the result as it is correct.
A type of "spontaneous synchronisation" occurs also when you are walking while listening to music and your steps also start to synchronise to the beat of the music you are listening to.
THHHHAAAAANK YOOOOU!!!! This clear sooooo much up for me. If you could only see the cloud of "quantum, quantum, quantum, quantum" built up in my head from all this talk about it... 😮💨 Big help!
What is the down side to quantum computing? Could this technology have catastrophic implications? I don’t want to get ahead of the discussion, but Michio Kaku is warning that the combination of AI with quantum computing could be very dangerous. I don’t know enough to know whether this is realistic or not. I see a lot of ominous messages attributed to him & I don’t know how realistic they are.
I just subscribed to your channel. I’m not a math genius at all. But I loved 🥰 your visualization of the quantum tunneling effect with the tennis ball 🎾. That makes the Bermuda Triangle a quantum tunneling effect because things are disappearing from one side and coming out another side that we can’t see. It’s enlightening.
When you observe your qubits you turn their probability into an actuality, how do you know that particular actuality is more correct than any other actuality which could possible have occured?
Geez, I guess the accuracy & speed will all depend on the quantum computer brand you buy. I'll be dead by then, so one less thing to worry about...lol.
In a nutshell, if you enter a problem into a quantum computer as a string of 1's and 0's, it will re-arrange them in such a way as to optimize its quantum state. If these 1's and 0's represent an initial non-optimized state of a physical system, the result will be the optimized state of that system. Therefore quantum computers can solve optimization problems in a fraction of the time compared to traditional computers.
Yes - it's like when you roll a die, the result is only a single face of the die - a 1, 4, or 6 for example. But when you roll a 'quantum' die', it flattens out so that all six faces are selected. However, when reading out the result, only the brightest number (signifying the most probable solution) is visible, being the optimal answer. It's analogous to a machine learning algorithm, where you let the quantum bits 'do their thing' and all you get is the final answer/solution. This is because the superposition of the electron spins cannot be observed directly, only the final result. In fact, when quantum computers run a program, the output is often the best 'probable' answer. Hence, the program is repeated several times to confirm the correct solution. Also, quantum computer programs exhibit a high error rate, so that is another reason for a lot of redundancy and error checking. But these systems are become more accurate and giving more reliable results day after day.
Great video! Interesting to hear about potential applications as well. According to a guest we just had on our show, quantum computers will also pose a very significant security risk, because they will be able to hack into current internet encryption, so someone could potentially read all internet communications
Mr. Gomi says 10 years to Quantum computers. Today, 2 years later, there are 10 companies currently using Quantum computers. Not so bad as others have said it's 30 years in the future. True, it's not going into your cell phone, but the incredible power to crunch extremely large numbers in minutes instead of years will benefit us all.
You really have set Back my understanding of Quantum Computers. You have Added Dissimilar things together. You have added the `Eisenstein's Cosmological Constant' to produce the result you wanted. Ha!
6:10 to 6 20 I truly cannot comprehend with just the picture could we get another video explaining just that one bit, how adding a bit and q bit makes q bits reach 8 possible solutions versus bits having less.
1st time I heard quantum computers explained. I say you did an excellent job. The theory doesn’t seem too confusing to me if you accept all of quantum physics strange behaviors. But how would you actually built something like that?
I'm assuming that a quantum computer isn't faster than a traditional computer at finding the smallest element in a list because each element must be inspected. (And if you double the list size, the computational time is doubled. It's inconceivable to me that a quantum computer can do better than a traditional computer at this task. You have to inspect each element, there's no way around it.) -Also, there are lots of Traveling Salesman problem algorithms that model nature, for example the "ant colony algorithm". But these algorithms often get stuck at local minimums, not the true minimum. I wonder if quantum computers will have this same problem. We'll see! -Thanks for making such an interesting video!
For n-bits, there are 2^n combinations. So, for a problem like a mouse 🐀 maze, each bit would be a decision to make a left turn or a right turn through the maze. Hence, with each path consisting of four moves, up to 2^n, or 2*2*2*2 = 16 possible unique paths would need to be calculated to find the right path to exit the maze. But by using a quantum computer, all 16 combinations (paths) of the 4 bits would be calculated simultaneously via the 'superposition' and entanglement of the 4 bits. Like the video mentioned, it's kind of a 'most likely probability' of where the right path would lead to the maze exit. This works because all the 16 possible paths are calculated simultaneously because the spin of the four electrons calculates all 16 paths in one swoop, whereas a traditional computer would need to try each path, ie: 0000, 0001, 0010, 0011,... 1111, until the right path to the exit is found. How the quantum result is read out from the four qbits is kind of skipped over in the short video, but for us newbies gives us the motivation to explore more in-depth UA-cam videos on the subject.
In a traveling salesman problem with 10 cities, the quantum computer would calculate all the possible routes/paths simultaneously. Then when reading out the result, only the highest probable optimal route would be visible. The problem is normally run several times to confirm the correct result, since quantum computers have a high error rate and a single result may not be the most optimal one. But they are getting better each day.
Thanks again to NTT Research for sponsoring this video! You can join them virtually for their Upgrade 2021 event where they'll even be demoing a CIM: unlockr.co/NTTUpgrade2021
Quantum computers has changed are reality. I had a dream where I was at the manor doing the dishes. It n sent my mind back 2 the bed. Like time travel. It wasn't a dream though
A good description of a q bit is, it is like two classical switches in one.
A good explanation of a weave function is, that it executes multiple lines of code at one time.
A good explanation of Quantum coherence, meaningful control over the collapse of the wave function, to its classical states. (A one Qbit explanation).
The funniest video i ever watched.... 😂😂😂😂😂😂 bro just want to create a content that's it😅😅😅
This cleared up a couple things, but I'm still confused about a lot. I'm particularly interested in the actual physical mechanisms that are taking place. How exactly are the electrons being set in place and measured? What is actually physically happening to make calculations?
If you take the atom and cut it in two. Both sides will always move together no matter where you take one in the world. Quantum entanglement
for that u must clearly understand the young's double slit experiment ,de broglies hypothisis as well as its proves and experiments, wave nature of electron , difference between conscious and sub-conscious view of electron. thats when u know whats happening inside
If you take an atom and cut it in two, you will likely be dead shortly thereafter@@drekelley2352
thanks. I don't have the perspicacity to understand all this stuff but at least I can now believe that quantum computers are probably real!@@amruthmessi1025
A quantum program consists of setting up the qubits (like electrons) in a known state, then forcing certain interactions between the electrons according to your algorithm , allowing the electrons to interact (which is the calculation part), and then reading out the final state of your qubits. The calculation is done via the interactions of the qubits according to the laws of quantum mechanics. They use the term "gates" (like in conventional digital logic) to describe operations on qubits or groups of qubits. To interact with the qubits, such as electrons, they send in precise bursts of radio frequency energy to "rotate" the electrons into the desired state, and use a similar process to "read" the quantum state at the end (destroying the quantum state in the process).
I am a programmer of android apps , and I still do not get it properly, this video of yours is farr from explaining to everyone
Yeah, but it was made real clear he lives in NY city and it has a lot of graffiti everywhere.
@@charles-y2z6cexactly
He didnt explain shit because he doesnt understand it at all. How would the superposition require 4 bits to describe? That IS the difference and you just said it like its self explanitory. Hes just reading an excyclopedia.
Also doesn't understand what a theory is...
i just do not understand that bit that can be used to be 1 and 0 at once how the procesor is working with it
As any other video on the topic you explain superposition and entanglement and then abracadabra the right result appears out of nowhere. What do these things have to do with synchronizing (how) connected (how) particles (electrons?) that are calibrated (how) to encode the distance between the cities (how). Then they synchronize and show (how) the shortest path solution (how)????
Dude, I barely understood anything you said but I still loved it! I love everything about the video and that thumbnail is gold!
Oh don't worry, I have a degree in computer science and I didn't understand it either 😅
@@jorisbonson386nobody with just a computer science degree would understand quantum computing at the first glance because this works based on the physics principles.
@@ravikumar-sharma-k Correct.
I purposely went looking for "quantum computers for dummies" so I can get a better understanding of it. I may be more confused than I was before. I should have looked for "quantum computers for people with one brain cell."
Baffling.
This is the first video of yours I've watched and it was epic. I've see a lot of articles on quantum computing lately but science is a hobby and not my day job, so it was great to find a video that could lay this out in a way that was easy to grasp.
If you think this was good, you should have a look at his review of smartphones when they're released.
u still dont have any idea wht quantum computing is dont lie
@@PeterArnold1969 We already have smartphones...
I guess I need to find the "quantum computing for COMPLETE AND ABSOLUTE MORONS" version.
The brain is a holographic quantum computer.
When it comes to quantum computing, I really like the "traveling salesman." Another good visualization is a person making their way through a maze, where all the potential paths are calculated at once to find the perfect path. Such a cool idea.
Finally an intuitive visualization of how entanglement goes about solving problems.
Except for the fact that you have to design an equation that encompasses everything there is to be in compass than whatever you're trying to measure. Trying to boil most of the real problems down in life don't need no damn quantum computer. They are simple and these computers and the solutions that they are purported to have are already trash. With all the money we have invested in this trash we could have done built this world into what it should already be. This is embarrassing. Can't you see more information isn't any more helpful to The human experience when you are avoiding the actual human in the experience. Measure their quantum position but they don't take into account before or after and seeing how there's this thing called The butterfly effect even cares what the superposition is right now because the thing is so complex you can't tell whether that's true one atomic time unit before or after. So how the hell are you going to take her computer answer and claim that to be the answer just off of a computer saying this is it. It'll be easier if we just take the AI quantum computer that you already have called yourself out into the fucking world and explore it. Then all this technology would make a lot more sense and be a lot more helpful because you have some actual real knowledge of the world. The money wasted on this technology innovation is embarrassing when all it does is distract us from our entire life and enslave Us in this piece of shit system where nobody is okay with all the war yet our country just sent a hundred billion dollars to Ukraine for war. We send a hundred million dollars to Turkey after their entire country got destroyed in 50,000 + people died in an instant. And you are worried about some stupid quantum computing. What a fucking embarrassment. All the power in the world isn't going to satiate our greedy slime Lord's evidently. With a hundred billion dollars you could literally build a home for every single homeless person in America. And that wouldn't even cost more than twenty billion. Take all that fucking war energy and go spend it rebuilding the world and maybe they wouldn't hate you. So scared of terrorism yet you are terrorists. All gung-ho to kill the Nazis yet looks like you're worse than the Nazis. Quantum computing yet the Americans are going to be okay with starving one or two billion people to death. Congratulations people of Earth. Give yourselves a round of applause.
@@donr7327 Agreed, it made me a-ha!
@@donr7327 I think binary program language has solved that....
Like making all the maze paths simultaneously and then choosing the best one? I think I can picture it I just dont understand how it is done
I like the way this guy teaches. Ive heard of the concept of "quantum tunneling" my whole life and can now easily explain it to someone. The ball bouncing off the wall example helped a lot.
I think the ball bouncing off the wall is very misleading. I mean how does a particle (electron) “magically” go through an atom? Instead think about the electron and the atom as waves and how they would interact. That’s the better way to understand Quantum mechanics.
@@2204JCMI already know this is going to sound stupid but are these waves you talk about the same thing as "strings" that I keep hearing about? This is all so hard for me to understand. The quantum tunneling example with the ball was great, the visualization give me a tiny clue, & your mention of waves was an improvement for me. I am also puzzled by what is called the "string theory". Are these strings more like waves? When these guys talk about strings, I literally see strings LOL & nothing makes sense. Then I read that the string theory has nothing to do with quantum mechanics & sometimes I read that it has everything to do with it. Lately a channel I watched said that the JWST (James Webb Space Telescope) had just debunked the "Big Bang" but the presenter kept barreling through the rest of his presentation using the term "Big Bang" LOL. I've also found that that there is a great variability in the levels of explanations of the different channels. Sometimes it all sounds like a lot of snake oil to me LOL.
What did this have to do with quantum computing though? Never made the connection to how that applied to the topic other than a random fact about quantum physics
What a great overall look at Quantum principles' basic theory plus applications. I enjoyed this BIG PICTURE vid a lot. I grew up with Particle physics and quantum mechanics was just coming onto the scene when I got older. Nice to have some of my information confirmed about Quantum mechanics and to have simple ways to THINK about it all. Our world is indeed changing quickly, and keeping up is as much about the details as it is about the big picture. Thanks for the Big Picture, David!
First, that is a fire 🔥 thumbnail and 2nd dope video as always
Thank you sir!
It's strange how US and UK English differ. In UK English a dope means someone who is really stupid hence why I was initially shocked when I read the comment.
On the subject of computing my Dad met Alan Turing when the latter was working on the Manchester Mark One computer.
A far cry from Quantum computing though.
Your channel as well man. Coo
First video ive seen of yours, but not the first video on quantum mechanics or quantum computers. Im a computer engineer and I love this video, especially the cuts of just cityscape. You give a small amount of time to reflect what is gonna be explained. Genius! And the video has a feel like that of walking and talking with an old friend 😄
Thank you!
Very useful, we need another video about the other uses of Quantum Computer in decoding , cyber security , its expected effect in cryptology and crypto currencies besides medical , pharmaceutical and physical uses. Thanks 🙏.
That's why crypto can under go hard fork just in case of new insecurity. I have been doing research on this as am a huge fan of Crypto investment. The next upgrade in eth i.e ETH 3.0 will be quantum computer proof, and Bitcoin will be capable of going through a hard fork if SHA 256 becomes vulnerable to quantum computer. But currently only public keys before 2010 which is just one quarter the current btc addresses are vulnerable to quantum computer. More studies is going on..
@@Blockchain_BoxOfficeWOW...could someone translate this comment into plain English for me LOL.
log(n) where 'n' is 3 cubits is the same as quantum computing (I was referring to 6m11s in your video). So isn't 3 cubits considered octal computing?
This was a great starter for me. I've been trying to figure it out on my own, but I'm not a math or science guy and I'm just old. LOL. I'm gonna watch it a couple more times. My original programming effort literally involved wiring punch boards... yes, before punch cards... and building a Radio Shack computer. I want to see what the hardware looks like vs a "regular" computer, i.e. the chips, etc.
Thank you very much for going down to the level how Qbits work. Very simple explanation using 2 bits (classical) and 2 Qbits and then 3 bits. Honestly, I got stuck here, rewinding this portion of video for almost an hour, all of a sudden I understood it. Now, this portion of video is etched in my brain (BrainBits !!!).Rest all is simple to know the enormity of QC.
No video talks these fundamentals except they extolling Quantum computing and future stuff. I very much appreciate your way of explanation buddy !!! Keep coming with more!!
Well done. The video promised to deliver a high level simplified explanation and it does that well.
Great video but wait, I'm getting caught up bigly at 5:33. Why are four bits needed to represent the superposition? What is the extra information encoded by the superposition? It's still only two bits right?
1. An awesome thumbnail and a great video for explaining such a complicated concept.
2. Video shots in real world >>> videos made in studio
Best explanation about quantum computers so far , I subscribe !
Thank you!!
Thanks very much to you and NTT. Great primer!!!
5:33 - 6:00 Could someone explain how this works? I've rewatched this clip ten times and still can't soak in the words.
So basically the Quantum computer has supersition, where a traditional computer does not. Where a traditional computer can register a 1 OR a 0, the Quantum computer can simultaneously measure a 1 AND 0 until final observation. Meaning the bits, "qubits," or amount of potential calculations, it can perform at a time, increase exponentially over that of a regular computer processor...
I'm not so deep into science, and still have a lot to learn about computers and quantum mechanics, but I hope I've got the idea correctly.
Thanks for keeping it simple. Good video.
🤯 Oh man this is a hard topic to wrap my brain around but this definitely helps understand Quantum Computing a "bit" better!
This certainly opened my mind to this concept, at least further than I understood it before. I just have so many questions popping now. How to harness this? Wouldn't the information be random? How would you get the actual outcome you are looking for? Even when they sort of sync up, are they synced to what they should be synced to? I don't know if I am even making sense now, my mind is going quantum.
I only have one question. Having recently looked at Schrodinger's Cat, I have now reached the conclusion that it has to be re-written and for very good reasons. At the time that Schrodinger was around the only term being used was the "Universe" however we have moved on since to discover actually that there is a "Multiverse" and perhaps more so beyond that.
Why this matters is because it would mean that "Super Position" would technically have to be automatically upgraded to "Hyper Position" and whilst this may only be a unknown and untested theory the logic, is deafeningly sound.
Now in some fields of science we would have terms of a "Super - Super Position" and whilst that can to be feasible it cannot therefore be ruled out that there could be a combination of even a "Hyper Super Position" or more which we still need to discover.
I have been contemplating the "Parallel Universe" for some decades now, but upon reflection the existence of such is a given and again becomes limitless, to the same level of "Quantum Entanglement" which whilst may be spooky, is equally very real. Whilst for many this borders on what some of us may refer to as the "Twilight Zone" it will eventually be not just proven but established and founded as real building blocks of science.
As a race of people who wish to understand the complexity of the Cosmos, we need to lose some of the baggage that the world of science and academia has collected along the way. As some of what we have is no longer applicable, or has been a red herring, and worse. So perhaps Academia needs to do a bit of growing up if it wants a seat at the top table.
Yes - as mentioned at the start of the video, quantum behavior is radically different from most peoples' common understanding of their perceived notion of limits in the physical world. Superposition, quantum entanglement and quantum tunneling concepts have already resulted in the design and construction of 'off the shelf' quantum computer systems. The general public just hasn't been able to wrap their minds around these new paradigms, since they appear so counter-intuitive to most people. After all, 'Introduction to quantum mechanics 101' isn't yet taught in most high schools or colleges. Fortunately, UA-cam channels host a slew of videos explaining how everything in this quantum universe operates. It just requires many cups of coffee and sufficient head scratching.
9:15 I am exponentially skeptical about this.
The only known speedup a quantum computer may provide to solving the TSP problem (at least if we want the exact solution), is by using the so called "quantum minimum finding" algorithm which takes TSP from being O*(2^n) to O*(1.728^n) on a quantum computer.
In other words, Grovers algorithm is the only quantum advantage to these NP-HARD problems!
If you put my comprehension of quantum computing on a scale of 1-100 it was at a 5 at the beginning of this video. Now I think I’m up to maybe a Hmm. 15 ?? Lol. Thanks so much !!
Interesting, so with quantum computing using parallel q-bits which can be at other places simultaneously, hypothetically, if an online game was created using quantum computing, couldn't one play online games with others living in parallel realities or alternate Earths via the quantum internet?
Will there be a quantum cloud? Or can they use the one that already exists? I wonder what programming languages will look like. Or will artificial intelligence have advanced so far that quantum computers will be programmed by AI robots?
But how do you get 2 particles to get tangled up?
Love it subbed!!! I've been trying to explain this to so many people but all I can do is absorb knowledge I can't explain jack. Thank you I'm saving this vid! Now my explanation will simply be a link click 😁
Very Illustrative ❤
Thank you 😊
I subscribed to your channel after watching this video about Quantum Computer. At the moment, this is the most understandable video so far. The videos about Quantum Computer out there are either not related or relevant to me, or I am not smart enough to understand them, Thank you for your work! Keep producing videos like this one!
Thank you!!
That was very well explained. I have seen a lot of programs that explain how they work but never real practical applications.....I commend you on adding that portion....The why should I care piece....Good work!
Thank you!
My wife is brilliant..... at icing. I bet she has no idea just how quantumly good she is at choosing the correct nozzle! Excellent vid, as you can see I nearly got there. Thanks.
At we really need now is a comedian fully versed in quantum stuff. Some of hese comments are sometimes pretty darn close.
Damn. This video looks professionally made, it deserves more recognition. Esp. bc after watching countless videos trying to understand QC, i understand
Thank you!!
This is an excellent description. Thank you.
Thanks a lot. Best explanation so far. How do know that the optimisation process between the data is for the problem that you actually want to solve and not the optimisation for some other relationship?
You'd be a great teacher/lecturer on tech and science man
This is the 5th video I have seen on understanding quantum computers. They all come down to the same thing:. Just because it seems strange and we can't make it work doesn't mean it's useless.
This emperor has no clothes.
Thank you. The answer is that we need all the explanations we can get on quantum computers, in order to understand them. No single attempt will be good enough. It' a concept that needs all the explanations it can get. The breakthrough we need is superconductors at room temperature.
Thanks for the clarification.
BX STAND UP!!!
Well, here is the best compliment I can give you. I watched the whole video!!! Loved every minute of it. Thanks for a Job well done!
Thank you!!
It’s called NTT research because quantum computers summon “entities” from a different dimension.
It’s no coincidence.
Great video man. Expecting more videos like this
I'm a little above the average bear when it comes to understanding most things Quantum, and you did a fantastic job explaining quantum computers without spending an hour going way far down the 'Rabbit Hole'. Great job!
I have a question about the ball popping out on the other side of the wall. Do scientists know that the ball is the same ball that went in? Or was it simply a ball that got displaced since everything is made up of balls?
This is such an amazing intro. So thorough and easy to understand. You earned another subscriber!
Good job dude. You knocked it out of the park. A great explanation of the core concept 👏³
Thank you!
Dang, hat's off to you for your plucky swing at explaining the Mt. Everest of high concepts.
Quantumly explained!
Well done man ❤
Respect from Iran 👍
very interesting video. great use of a videographer, and hope to see more mixtures of vlog style, as well as 3rd person shots.
Great job… the best explanation I’ve ever heard
Great video with none of the complicated math that just nearly explains Quantum Mechanics.
THANK YOU ... 🤯🤯🤯
A quantum TV remote would be quite useful. No more worrying about being in line of sight for it to work. Plus i can potentially watch all channels at once.
You can’t transfer information using super position particles.
@@blackivy011 a bit of a conondrum because if no info is sent then how would we know superpositioned happened?
@@blackivy011 entanglement
You can do line of sight with an RF signal.
You watch a lot of tv when you're not in line of sight?
Great job! Just got a new subscriber!
Thank you!
The best video so far, to understand quantum computing in a simple way.....👍
I still don't understand how it doesn't have a position until someone studies It. And if that's true, how do we even know if that's true if we can't know until we study it. It's so confusing and I will never understand that.
Very nice presentation, good on 2 levels: technical correctness, and aesthetic enhancements recognized by viewers sensitive to "the arts" with visual, audio and psych-sensitive style.
A very welldone educational video about a very sophisticated/complicated topic.
Personaly I got more insigth in the topic thanks to your video. And I have seen many videos and I have read many articles about quantum computing. Your explanations and presentation are among the best, i have seen.
So super video 👌
Congratulations, you have provided the first light of understanding on this topic to me! 👍
Terrific Job, simplifying where you can to get the main issues across. Electrons don’t really spin, but they do have magnetic moments of inertia as if they did :-)😊
Phenomenon-singular
Phenomena-plural
Very well done, BTW:)
Ha thank you!
I wouldn’t go as far as saying “anyone” will understand lol still fun to watch
I just watched a StarTalk on quantum computing, and they inspired my questions, which make sense to ask here:
1. As circuits have gotten smaller, there is a chance that electrical signals can interfere with each other and results need to be error corrected (ECC RAM). When you are talking about accurately calculating exponentially larger positions, how could you build such a device that wouldn’t have innumerable errors in it? How would we be able to get around that?
2. Current computing technology uses addressable memory. With the sheer number of quantum particles, how can you program such a monstrous amount of data and how can you identify which superbits (my term) contain the answer and how do you get that back into understandable output?
I only understood the term "addressable memory". Do quantum computers have "addressable memory"? Wouldn't they have to have addressable memory to be "programmable"?
The salesman problem is also akin to what a computer would have to do In order to brute force encryption. The computer would systematically try every possible combination of keys in order to find the right one.
A quantum computer would theoretically be able to break encryption by being able to attempt billions of key combinations in an instant.
Totally! But also could be used to make better encryption as well
I have been read articles and watched a lot of videos on how quantum computer works and didn’t get it. But for me this video is the best or the closest explanation about quantum computer. At least what I get is: basically we don’t know (yet) how quantum mechanics / quantum computer works, but we can make it, run it and observe the result which proven to be correct all the time by the experiment. For now, we just need to ignore how it actually works, just focus on building it and just use the result as it is correct.
Thank you!!
A type of "spontaneous synchronisation" occurs also when you are walking while listening to music and your steps also start to synchronise to the beat of the music you are listening to.
THHHHAAAAANK YOOOOU!!!! This clear sooooo much up for me. If you could only see the cloud of "quantum, quantum, quantum, quantum" built up in my head from all this talk about it... 😮💨 Big help!
For the first time I feel like I have a clue. Thank you for this explanation. Fascinating
Man! Was this good. Thank you.
What is the down side to quantum computing? Could this technology have catastrophic implications?
I don’t want to get ahead of the discussion, but Michio Kaku is warning that the combination of AI with quantum computing could be very dangerous. I don’t know enough to know whether this is realistic or not. I see a lot of ominous messages attributed to him & I don’t know how realistic they are.
I just subscribed to your channel. I’m not a math genius at all. But I loved 🥰 your visualization of the quantum tunneling effect with the tennis ball 🎾.
That makes the Bermuda Triangle a quantum tunneling effect because things are disappearing from one side and coming out another side that we can’t see.
It’s enlightening.
Great job !!!
You succeeded in turning a very complicate topic into concepts that anyone can comprehend.
🤯🤯🤯
Thank you!
Fantastic explanation of an incredibly complex topic
When you observe your qubits you turn their probability into an actuality, how do you know that particular actuality is more correct than any other actuality which could possible have occured?
Geez, I guess the accuracy & speed will all depend on the quantum computer brand you buy. I'll be dead by then, so one less thing to worry about...lol.
In a nutshell, if you enter a problem into a quantum computer as a string of 1's and 0's, it will re-arrange them in such a way as to optimize its quantum state. If these 1's and 0's represent an initial non-optimized state of a physical system, the result will be the optimized state of that system. Therefore quantum computers can solve optimization problems in a fraction of the time compared to traditional computers.
Yes - it's like when you roll a die, the result is only a single face of the die - a 1, 4, or 6 for example. But when you roll a 'quantum' die', it flattens out so that all six faces are selected. However, when reading out the result, only the brightest number (signifying the most probable solution) is visible, being the optimal answer. It's analogous to a machine learning algorithm, where you let the quantum bits 'do their thing' and all you get is the final answer/solution. This is because the superposition of the electron spins cannot be observed directly, only the final result. In fact, when quantum computers run a program, the output is often the best 'probable' answer. Hence, the program is repeated several times to confirm the correct solution. Also, quantum computer programs exhibit a high error rate, so that is another reason for a lot of redundancy and error checking. But these systems are become more accurate and giving more reliable results day after day.
Super interesting! Thank you for this video!
Amazing video. Very easy to comprehend 🎉
You did it very well in a very approachable manner.
Thank you
Great explanation, I loved it!!!
Thank you!
@@TheUnlockr You Deserve it
wow, this is the only video on this subject where I feel like I was actually able to understand anything
Loved the traveling salesman example. Makes a lot of sense
Great video! Interesting to hear about potential applications as well. According to a guest we just had on our show, quantum computers will also pose a very significant security risk, because they will be able to hack into current internet encryption, so someone could potentially read all internet communications
Good Work ! Keep em' coming !
Mr. Gomi says 10 years to Quantum computers. Today, 2 years later, there are 10 companies currently using Quantum computers. Not so bad as others have said it's 30 years in the future. True, it's not going into your cell phone, but the incredible power to crunch extremely large numbers in minutes instead of years will benefit us all.
Well done dude. Still not fully clear but a step closer. Thanks mate from Australia
You really have set Back my understanding of Quantum Computers. You have Added Dissimilar things together. You have added the `Eisenstein's Cosmological Constant' to produce the result you wanted. Ha!
Thank you! The more I understand the more I’m lost 😅 but it’s so fascinating!
Just curious, what camera are you using?
Finally the video I've been looking for.
6:10 to 6 20 I truly cannot comprehend with just the picture could we get another video explaining just that one bit, how adding a bit and q bit makes q bits reach 8 possible solutions versus bits having less.
1st time I heard quantum computers explained. I say you did an excellent job. The theory doesn’t seem too confusing to me if you accept all of quantum physics strange behaviors. But how would you actually built something like that?
I'm assuming that a quantum computer isn't faster than a traditional computer at finding the smallest element in a list because each element must be inspected. (And if you double the list size, the computational time is doubled. It's inconceivable to me that a quantum computer can do better than a traditional computer at this task. You have to inspect each element, there's no way around it.) -Also, there are lots of Traveling Salesman problem algorithms that model nature, for example the "ant colony algorithm". But these algorithms often get stuck at local minimums, not the true minimum. I wonder if quantum computers will have this same problem. We'll see! -Thanks for making such an interesting video!
For n-bits, there are 2^n combinations. So, for a problem like a mouse 🐀 maze, each bit would be a decision to make a left turn or a right turn through the maze. Hence, with each path consisting of four moves, up to 2^n, or 2*2*2*2 = 16 possible unique paths would need to be calculated to find the right path to exit the maze. But by using a quantum computer, all 16 combinations (paths) of the 4 bits would be calculated simultaneously via the 'superposition' and entanglement of the 4 bits. Like the video mentioned, it's kind of a 'most likely probability' of where the right path would lead to the maze exit. This works because all the 16 possible paths are calculated simultaneously because the spin of the four electrons calculates all 16 paths in one swoop, whereas a traditional computer would need to try each path, ie: 0000, 0001, 0010, 0011,... 1111, until the right path to the exit is found. How the quantum result is read out from the four qbits is kind of skipped over in the short video, but for us newbies gives us the motivation to explore more in-depth UA-cam videos on the subject.
In a traveling salesman problem with 10 cities, the quantum computer would calculate all the possible routes/paths simultaneously. Then when reading out the result, only the highest probable optimal route would be visible. The problem is normally run several times to confirm the correct result, since quantum computers have a high error rate and a single result may not be the most optimal one. But they are getting better each day.
Thank you for a great job in explaining.
How does a qbit have both states at the same time if you just said they're held in a magnet field in either spin down or spin up position?
great skill this is... explaining complicated matter in such simple words 🙏
Thank you!
In the traveling salesman/Ising Machine scenario, how does synchronizing to low spin provide the correct path?
i love the background and the style little slow with the coffee but i enjoyed
Well researched and I did not know about quantum computing. Nicely done and well executed.
Very well explained. Looking good in that cap btw 😉