Quantum Computers Aren’t What You Think - They’re Cooler | Hartmut Neven | TED
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- Опубліковано 5 вер 2024
- Quantum computers obtain superpowers by tapping into parallel universes, says Hartmut Neven, the founder and lead of Google Quantum AI. He explains how this emerging tech can far surpass traditional computers by relying on quantum physics rather than binary logic, and shares a roadmap to build the ultimate quantum computer. Learn how this fascinating and powerful tech can help humanity take on seemingly unsolvable problems in medicine, sustainable energy, AI, neuroscience and more.
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#TED #TEDTalks #quantumcomputing
If you’re looking for an accessible, logical explanation of how quantum computing works, then this… is not it.
Hard to explain a phenomenon that computes in parallel universes literally.
It is though
Regarding the sunglasses on the head: As a bald guy, I can tell you,he’s preventing the light from gleaming off his head and permanently blinding the audience. A true gentleman.
Quantum computing could potentially reveal new and better ways to minimize that gleam.
He’s collecting the quanta of light particles to use later
interesting
He got a PhD and the D stands for drip. My boy styling
😂
Is that a post nasal drip.
I was thinking the same thing.
Phat Drip (PhD) 😂
Basically a quantum computer is a whole box of schrodingers cats.
Basically a quantum co-processor is simply a chip that can use one or many (qbit) analog signal(s) instead of a digital signal, but they can't explain it with those "easy to understand" words because they are well paid, they make conferences and their living $ on the Schrödinger's cat concept and explanations
This is amazingly correct statement
Schrödinger's kittens are either, napping, awake, or have quantum tunneled out of the box...
@@PierreH1968 “maybe”
The sunglasses make him very relatable.
That's right, actual smart people are now seeing through the veil
Petty comment..!!
If he put them down, he'd have that sweet evil genius vibe
it is just a code. When wearing them like that he lets others know despite all the quantum he is just coming from the rave
Its so no one can wipe his memory :)
The real science was the friends we made along the way
In particular the ones who invested in our quantum dream
I went to the quantum multiverse, they knew Hartmut Neven there.
A much simpler way to describe this, instead of using a many worlds theory, would be to say there is a yes, a no and a maybe or what if state. With his three coins he could have had one on heads, another on tails and the third balancing on it's edge, ready to fall either way when interfered with.
Maybe I missed it - does the presenter say anywhere in the video in how many fields you need to get PhD' s before watching this video?
Yea, I didn't truly understand the explanations and definitions he gave, but I can understand, in a general sense, the importance and purpose of quantum computing. It was definitely perplexing to watch at certain moments.
I'm dumb truck driver from Canada.. the only thing I didn't understand was his outfit 😀
@@stevefromsaskatoon830 The gentleman's coat can be said to be in a quantum superposition. If there is nothing observing it/ measuring it, the item can be claimed to be a coat and a bedding comforter (aka a duvet).
He didn't do a good job selling the equivalence with a multiverse, magic and wormholes.
Overall he totally failed to explain the basic principles like superposition, qbit and even quantum computing.
It is a very bad presentation.
I guess he think we are too dumb and ended up being dumb himself.
In my opinion he's explaining the concepts way too complicated.
0 understanding but 100 curiosity 😂
How binary of you!
It’s all right they are still trying to find something useful to do with it
Everyone starts somewhere!
Quantum mechanics does not prove multiverse hypothesis, the multiverse hypothesis is just a solution suggested to explain the weirdness of superpositions and collapses. Multiverse hypothesis is not based on an objective truth or testable scientific experiments. He should know better than to give such examples for a large audience, propagating myths like this is not productive.
He really doesn't seem too worried about making wild, as of yet scientifically unsubstantiated conjectures, what with the whole "we'll be able to expand human consciousness through space and time". However, I like that he's not afraid to think creatively.
Nobody understands quantum mechanics. Especially general public at TED talk. Multiverse hypothesis, on the other hand, can be explained pretty simply. So, his explanation is more than OK.
@@SibLondon nobody understands what happens after death. So is it ok for me to give my version of the truth and present it as a fact ? No it’s not.
@@UFOgamers You're describing what every religion on Earth does everyday.
@@UFOgamersyou may look into a Course of Miracles if you like this kinda stuff.
I understand quantum computing less after watching this video than I did going in
Wow it's Dr. Emmet from back to the future - life this guy and his style and knowledge
I think concluding that superposition and quantum properties are signs of a multiverse is far-fetched. It's just that the rules governing things at that scale are different from what we experience. This doesn't necessarily imply that what we observe in the quantum world necessitates the existence of parallel universes.
That’s a fair assessment, but the many-worlds interpretation is a plausible explanation. It indeed may be the case that quantum computers are performing parallel computing in parallel universes. More likely, it’s just an apt way of describing / modeling whatever is really happening.
Seconding what the other commenter said. Personally I think many worlds sounds far fetched but makes way more sense than your traditional copenhagen interpretation. It's actually the simplest explanation of what we observe, since it doesn't impose wave function collapse. Sean Carrol advocates this argument really well
Very far-fetched
@@Michael-ul7kv I agree actually that its unlikely that "many worlds" is the right way of thinking about the entire wave function and its splitting, but I do think it's the closest thing to a philosophically sensible interpretation and the best starting point for continuing to think about foundations of qm, which has been woefully neglected for the past century
I think the issue isn’t that he’s presenting the multiverse hypothesis at all, but that he’s presenting it to the public who doesn’t have the information he does. Sure, it might be a useful model, but presumably nobody in the audience understands what’s flawed with this model because he’s presenting it so confidently as fact
And this was the easy way to explain it? Maybe in another multiverse 😊
the processing happens in extra dimensions of spacetime, think of it like a classic mult-thread CPU only those threads are actually extra dimensions of spacetime.
@@joeloiacono8850your explanation doesn’t help. Explain it to us like we’re 10 lol
@0:40 "Where does this superpower come from? Quantum computer is the first technology that takes the idea serious that we live in a multiverse. It can be seen as farming out computations to parallel universes." This is David Deutsch's idea !! in his book "The Fabric of Reality".
While the existence of the multiverse is unproven and probably unprovable I learned it to be a great way of explaining things at a popular science level.
Computer architecture has always been my thing. And so has physics been, so quantum computers are just the next crazy thing I'd love to work on.
Hey Ralf kennst du den Gregor
@@scheeenfilmiesgucke Gregor wer?
@@ralfbaechle Gregor Baechle...
@@scheeenfilmiesgucke Jetzt schon. Dank google ;-)
We may not be able to prove the multiverse theory, but when he mentions a "parallel" universe i believe he's referring to the duality of this universe that we're experiencing today. Our universe is technically two realities, and could potentially be conjoined in a state of superposition with equipment like this.
We harvest anti-matter, and the existence of anti-matter is sufficient evidence of a parallel universe that's made up entirely of anti-matter.
Can't wait to see what's possible with quantum AI
Teleportation and holodeck from star trek
Me too. The OTT hype potential will be incredible!
What are some examples?
That's nothing. If you also use cold fusion and cyber genetic blockchains, you will get millions (of investment money).
Looks like Skynet is almost here 😀 With these advancements so far, this computer could calculate its own redesign and finish the final four steps in no time. Computers have come a long way, especially since my first computer was an Atari 800XL and a model 1050 5 1/4 inch floppy drive 41 years ago. I still have it, and it still works!
I wanted to listen to this but kept looking at the sunglasses thinking 'why'?
and the shoes, distracting
Now I want a 'Time Crystal ' :P
Walmart has them for $12.97
buzz-wording
If we are exploiting parallell worlds to do quantum computation, does that mean that those worlds also have a quantum computer doing the same thing?
“Parallel worlds” is more of an analogy in this scenario. We are not actually exploiting other worlds to do computations, but we are doing something similar. Quantum computers can essentially evaluate multiple different possibilities at the same time, collapsing them into a single result.
I'm both enamored and terrified of what these machines will be capable of. I wish Turing, Bohr, Einstein, and Oppenheimer were here to see this. They would be so proud.
This was highly interesting, and I enjoyed how he broke it down for the audience. On a side note can I say this gentleman looks like the German version of Bryan Cranston?
So fun, I call these pocket dimensions! (All simultaneous possibilities positionally)
Next time get some aviator goggles. With that fit and that dome, you could probably make it work.
Don’t forget about cryptography! Being able to factor integers or computer discrete logarithms instantly breaks many commonly used crypto systems.
Fully, the first real example of quantum computing may be to hack crypto.
Does anyone know what the big step in optimization using Quantum computers is
?
Show some results. Just another pretty presentation.
He's just hitting all the important buzzwords and explaining nothing. As he said he has been working on Goggles Quantum computer for 12 years and basically at this point has nothing really to show.
04:10 finding one item in a DB of four cannot be done with one call in traditional instances? How is this meant? It is one query. It is quite strangely worded when referring to the search algorithm behind it. "In a database of four?" Sorry .. it is Big O root of n on average .. so could be 50% of cases 2 calls ... ah he meant Iterative Amplification and then it highlights within the superimposition the one state with high prob. yeah that is then 1.23 iterations , so 1 enough?
For me the Grover Algorithm is like a parallel suspect line: parallel witness checking all suspects simultaneously, where each suspect reacts to the witness's criteria without direct marking. With each iteration, the suspect matching the criteria becomes more prominent, while others feel increasingly overlooked. This repeated process makes the correct suspect stand out more, ensuring they are identified with high probability in the final check .... probably more complicated in the setup with the Repetition of Oracle and Diffusion but for me it helped getting the rough idea understood.
I would like to see the brute forcing capability of the QC against the current 256Bit encryption. Now he said the processing power is 1 Billion times more at the currect phase and here is a quote "AES-256 encryption is virtually uncrackable using any brute-force method. It would take millions of years to break it using the current computing technology and capabilities."
My math may not be on par with this guy but I think he said he can brute force the AES-256 in 0.365 days... thats 8.76 hours... so a lack of how many millions of years is the unknown in this equation.
Am I wrong here? And we are talking phase 2...
What stocks to buy besides QUBT?
Out of all possible multiverses, we live in the one, where he chose this outfit - or maybe he just asked his quantum-computer what 16yos would think looks cool.
I think they do not know time has passed, they have lived in the lab since 1997
Where he is from, it is cool
this guy's fit is unreal... superposition drip 💦💦
After he explained it all perfectly i still didnt understand anything but i think his sunglasses are cool.
I couldnt imagine being the lead of a bleeding edge field as this. Mapping consciousness? this is wild
My basic understanding has been that surfing the multiverse gives the illusion of free will and is the basis of consciousness. Glad to hear that Hartmut Neven had a similar thought. Would love to learn more. I marvel at what leap someone had to have to harness the multiverse in computing. Does it mean that there are a huge number of quantum computers in "many worlds" running the program in parallel? Once a reality splits off from this parallel path do we loose connection to that machine, or is that how the probability is calculated?
This many worlds or multiverse interpretation of quantum mechanics is not even testable or provable in any way. I really don't like how he wasn't more clear about his use of metaphors, especially with such a large audience.
Additionally quantum computers are not normal computers which can run a lot of things in parallel, these things exist already. Quantum computers work fundamentally different and the "parallelization" happening in them is completely different from traditional parallelization.
@@lucasinatur2925 Lucas,
I am an artist, one who wanders the labyrinth of scientific discovery, embracing my peculiar nature. As an artist, I strive to decipher the intricate patterns woven into the fabric of what I read. For a scientist, the multiverse theory may hold little utility, for it stretches beyond the confines of our testable reality. This boundary marks the edge of hypotheses, a threshold many are content to honor. I understand and respect this devotion to empirical rigor.
Yet, as an artist, I am liberated from the shackles of the provable. My imagination embarks on daring voyages through realms of "what if," enthralled by the boundless expanse of possibilities. Scientists unveil their finest theories, and my mind dances with these concepts until they spark a revelation.
Much of it is fantasy but that's ok for me.
Thank you for sharing your amazing work with the world ❤️ it’s so inspiring and so important that you share your work with the world as well as the rest of the community to help make this world a safer and better place in the future for everyone 💕 a big thank you and keep it coming my friend and keep up the way you do it 💕 keep going strong 💪 thank youuuu and have an amazing week
So it starts with three coins mentioned 01:25 , and some python, how hard in this going to be .. 😊
Two quotes that will now live in my head rent free:
"Quantum computing is the first technology that takes the idea that we live in a multi-verse seriously. It can be seen as farming out computations to parallel universes."
"Consciousness is how we experience the emergence of a single classical world out of the many the multiverse is composed of."
So the key is to have an insane ammount of storage space, full of data, that was translated from text to algorithm... and then to code.
Then, run that through a processor, which has inputs from the user, to achieve different tasks.
And all that funnels into a display, which can show images of data that has been quantized.
That's the most basic setup.
Then the next logical step, is to add machine learning to the storage unit, to further integrate whats been stored.
Then, youd start feeding more information into the storage unit, for more abilities on the processing and display side.
And forget computer code.
The best way is to create algorithms that can translate speech and text, into the computers own language.
On one hand, he is going for the technical aspects of what Quantum Computing looks like. But I just want to point out...that the best analogy I can give to simplify the advantage of such a computer..think of it this way..Everything our current computers do requires some kind of bandwith of data that is usually distributed across a bus..(a bank of circuit lines set aside for a specific purpose. Like a RAM bus, or I/O bus). Buses get bigger every few generations of computers to handle more data going back and forth in the computer. A single bus can have 64, 128, 256 lanes or more to accomodate all of the digital 1's and 0's passing through them. Like lanes of a highway. Imagine if your local highway had 128 lanes to accommodate all of the traffic driving on it. Now, with q-bits in quantum mechanics, the "1"'s and "0"s are replaced with 0-10*x^27 or something like that as a single digit. Suddenly, all of the traffic in the 128 lane highway fits into a single lane, and there is still a LOT more room for cars before you'd need to create a second lane. Like every car on the planet and THEN a lot more could fit in that lane. And the thing is. because its actually a single "digit" on that quantum board, it doesn't take any longer for a digit of any value of that q-bit to reach the end of its trip. If you put a large number in a standard computer, it takes several clock cycles to fully move that information to the next part of the circuit. In a quantum computer, moving a number that fits in that q-bit range only takes....one clock cycle. Can you imagine how fast those computers will be when they finally start doing practical things? We might actually have to purposely slow the user interface portions of the computer down to make it even usable by humans.
It could yet be all in their heads.
Love the way he pronounces quantum: kw-ant-um.
Thank you for this lecture.
Now I know how to use my own quantum computer.
Many people actually refute the suggestion that they actual computation that they did would take 1 B years for today's fastest super computer to do. It's above my pay grade to explain it, but I have read a lot from reputable sources that their claim is not correct.
Ted's videos are the most informative and excellent ones
Yeah but sometimes a video ends and I can’t remember what I learned Loll
Imagine being able to deliver individual cure if Quantum computers live upto it's promise. I don't understand a word he said, but I can sense the step is in the right direction.
The day Google is reading your bloodsugar and smelling your food we are doomed.
He just talked about potentially expanding your consciousness through spacetime and you're worried about glucose meters?
So he must have some kind of theory how this "smartphone-NMR" should work. What is it? How it is supposed to work?
Fascinating: What are the biggest challenges to building a large-scale quantum computer?
Decoherence is the chief issue to deal with. Entangled qubits tend to decohere for multiple reasons, limiting the number of computational steps that can be completed before decoherence ruins the calculation.
@@BarryKort
Thank you! That's enlightening.
Noise
So is QC just replacing current physical silicon/electricity computation with wave conversion of the same threads, thereby allowing almost limitless computation in a short time since you’re not bound by physical elements?
I want to believe him but those weird sunglasses on his head are suspicious 😅
He’s protecting us from his glare.
@@paultoensing3126 haha fair enough
😂
If you think that climate change is humanity’s most urgent problem versus a possible looming nuclear war on more than one front you need to rethink things.
Touch some grass ma boy
Is there a parallel universe where he doesn't have his sun glasses on his head while giving this talk because it would be less distracting.
Not sure what you dislike about that. It's a part of his style, he wants it, he wears it.
I hope there should be a parallel universe where you are listening his words rather then watching his glasses
I hope there is a parallel universe where I don’t read this obnoxious comment 🚮
@@Lootalot sorry, wrong universe
3:01 So, Naruto's shadow clone training 🙃
He's like the Kanye of the Quantum computing world.
And Kanye West is just a Xanax version of Farrakhan.
Quantum computer, can give you an answer to a yes or no question, and every answer in-between. Extraordinary.
actually, is more like explore all the posible path's of a labyrinth at the same time...
That isn't it at all.
Absolutely fascinating! Great video!
Great example of oversimplification essentially making the points meaningless
What would be the alternative? Respectfully, theoretical physicists have IQ in the top .1%. It would be tough to fill a Ted talk room for this lecture I think. The only alternative is to simplify.
bro dripped out beyond belief
There is no evidence proving that quantum computers require parallel worlds.
This video is a promotion of the 'Many Worlds' interpretation, which is just one of several interpretations of quantum mechanics.
So this guy is the main super villain in the next Bond movie right?
100 qubits?
Dynex is already reaching 1m qubits
Well, their marketing department is at least.
Thank YOU 👍
BRAVO 👏👏👏👏👏
Denying the massive evidence for ID is at this point becoming comedic considering the “evidence” for a multiverse is paper thin.
Why we dont use quantum computers to improve AI
It’s going to be the other way around. We’ll use A.I. to perfect quantum computing. If we get AGI, it will happen rather quickly.
This talk wasn't impressive - shades worn on the head though, are and will always be, so cool 😎
Uh, wrong lol
He should have worn them down and owned the evil genius look
Oh, baby, the quantum computing revolution has arrived!!!!
What is he talking about?
Nurse Practitioner here... wow! Wheels in brain rapidly turning! The applications in healthcare are immeasurable! Awesome! Thanks for what you do
The wheels in the brain go round and round, round and round...
Yes, it is pretty good marketing.
It's simultaneously cutting edge science and complete bs marketing. Quantum science
This dude isn't what you think - he's cooler!
Well I start programing with the zx spectrum like what...40,42 years ago? I wonder how it the home computer will be within 40 years? I sure it will be implanted in our brain for sure!
What happens when AI is loaded onto a QC ?
Well, with that sunglasses, Mr. Neven is even cooler than Quantum Computers.
Yeah i like the way they look like but not the endless algorithms it requires only if you don't know
Its actually impossible but also scaring thinkin about combine AI with this
Lock up your undergrads, Hartmut's here
Send you “love icon” from Vietnam
What’s the implications for bitcoin?
I saw this title and thought to myself, ''literally!"
I'm not very familiar with quantum computing, but is it generally expected in the field that it will follow the pattern of progress observed with conventional computing re: Moore's Law?
Moore's law is a trend. QC is bound by physics and if Google decides it's to much of that 90 billion of juicy revenue it makes. Progress could easily slow down.
Not at all. It was relatively easy to keep making smaller and smaller transistors just by making better lithography equipment and nothing else. Quantum computers start from the beginning with the smallest particles, and that comes with inherent problems like noise, interference, isolation, which at the moment all require very elaborate support system like cryogenics cooling.
*Here on behalf of South Africa*🇿🇦 1:20
No need to worry about free radicals. James Bond already disarmed them in one of the early Bond movies.
I guess it'll only get better and smaller from here
It is really Facinating
Is he suggesting that each person has their own experience of the multiverse? In other words, every conscious being lives in its own universe, tuned from the multiverse. Consciousness is the tuning that travels through every living being across the multiverse. Therefore, consciousness is one, but with different experiences across various universes. Every living being is a fraction of its expression. It may be Existance itself.
Did he just say these computers will evolve humans?
This is some trippy $#!+...
Fantastic talk !
And some inspiration for whom it may concern:
I have a sense that cymatics with water and light can be leveraged more and easier than what may have been thought. Resonance and water has some cool properties at certain water molecule resonant frequencies applying frequency modulation and even multiple layers in water body which indeed reflects light for logic operations (computing) .. some will write this off as nonsense others may realize that there are certain cool properties in freezing water and leveraging the waves as a buffer for data; even that certain types of quite “advanced” non-binary computation can be made.. and not requiring extreme conditions; more like access to freezing point, some nice controlled pressure in conjunction with air, wave energizers, sensors and light .. yep, there are cool stuff to discover here 😇🌊 may I suggest some AI boosted resonance research; Aĩr
اذا كنت مريض ...اخبرني بمرضك لأساعدك بالمعلومه اللتي تفيدك 🔥🔥🔥
im hoping to be alive to see the revolution of Quantum Computers in my lifetime
Rabbit holes, here I come!
Nice👌This is why I'm subscribed to TED 👏👏👏
I was terrified. A man pronounced quantum in a quirky way a lot. I'm still terrified.
from past few years iim interested in quantum computers but don't know where to learn it from
Interesting definition of consciousness .
The Quantum Computers has no clothes
The real science is the friends we made along the way
what is this thread 😭😭
To summarize for all you noobs out there. This is deconjucating passive instances of unicle code aversion techniques. It provides post-computational pragmatic analysis by divding nuberations on a passive scale.
Observation is what is truly weird
I'm a Navajo!