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Phymaths
United States
Приєднався 26 лис 2017
Hi. My name is Hassaan and I am a Ph.D. student of Theoretical Physics, working on the problems in String Theory and Quantum Field Theory. I make videos about topics in theoretical physics and mathematics. These videos include video essays, podcasts, book reviews, graduate-level physics lectures, and live sessions to answer your questions.
I hope you like the content here (and subscribe if you do).
I hope you like the content here (and subscribe if you do).
Phymaths podcast # 50 || Guest: Dr. Nabil Iqbal
*Description*
Dr. Nabil Iqbal is a theoretical physicist at Durham University. He works on holography, generalized symmetries, and condensed matter physics among other things. A list of his works can be found in the link below.
*Some links*
1) Dr. Iqbal's works: inspirehep.net/authors/1051240
2) Link to the high energy physics resources page on my website: hassaansaleem.com/graduate-level-theoretical-physics-resources-in-progress/
*Contact Info*
My website: hassaansaleem.com
Follow on Instagram: hassaan.3142
Join the Whatsapp channel: whatsapp.com/channel/0029Va9DkjmAzNbs7IlGuv1X
Follow on Twitter: Hassaan_PHY
Email Queries: greatestmight@gmail.com
*Time stamps*
0:00 Coming Up
0:37 Guest's intro
0:59 Inspiration for Physics
5:00 Holography overview
9:02 Maldacena's example of holography
15:13 Using holography for QCD
20:15 Truncating AdS spacetime
23:38 Chiral symmetry breaking
25:00 Non-Fermi liquids
30:54 Strange metals
33:16 Holography and Non-Fermi liquids
35:43 Holography and higher spin gravity
40:00 Evading Weinberg-Witten theorem
42:58 Generalized symmetries (Overview)
49:28 Applications of generalized symmetries
52:56 Kramers-Wannier duality
57:44 Symmetries as topological operators
1:00:47 Machine learning rediscovers duality
1:07:11 Sine Gordon/ Thirring duality
1:11:24 Which architecture to use?
1:16:21 How to see AI physics discoveries?
1:20:38 Tackling physics misinformation
1:26:40 The "Lying for Grants" lie
1:31:25 How to take Ph.D. students?
1:33:21 Lack of motivation
1:35:00 Getting back from failed projects
1:38:07 (People's question) Strings & 3D Ising model
1:40:58 People's questions (Rapid fire)
1:47:32 US vs UK Ph.D. system
1:49:11 Advice for undergrad, master & Ph.D students
1:51:23 Dealing with Imposter syndrome
Dr. Nabil Iqbal is a theoretical physicist at Durham University. He works on holography, generalized symmetries, and condensed matter physics among other things. A list of his works can be found in the link below.
*Some links*
1) Dr. Iqbal's works: inspirehep.net/authors/1051240
2) Link to the high energy physics resources page on my website: hassaansaleem.com/graduate-level-theoretical-physics-resources-in-progress/
*Contact Info*
My website: hassaansaleem.com
Follow on Instagram: hassaan.3142
Join the Whatsapp channel: whatsapp.com/channel/0029Va9DkjmAzNbs7IlGuv1X
Follow on Twitter: Hassaan_PHY
Email Queries: greatestmight@gmail.com
*Time stamps*
0:00 Coming Up
0:37 Guest's intro
0:59 Inspiration for Physics
5:00 Holography overview
9:02 Maldacena's example of holography
15:13 Using holography for QCD
20:15 Truncating AdS spacetime
23:38 Chiral symmetry breaking
25:00 Non-Fermi liquids
30:54 Strange metals
33:16 Holography and Non-Fermi liquids
35:43 Holography and higher spin gravity
40:00 Evading Weinberg-Witten theorem
42:58 Generalized symmetries (Overview)
49:28 Applications of generalized symmetries
52:56 Kramers-Wannier duality
57:44 Symmetries as topological operators
1:00:47 Machine learning rediscovers duality
1:07:11 Sine Gordon/ Thirring duality
1:11:24 Which architecture to use?
1:16:21 How to see AI physics discoveries?
1:20:38 Tackling physics misinformation
1:26:40 The "Lying for Grants" lie
1:31:25 How to take Ph.D. students?
1:33:21 Lack of motivation
1:35:00 Getting back from failed projects
1:38:07 (People's question) Strings & 3D Ising model
1:40:58 People's questions (Rapid fire)
1:47:32 US vs UK Ph.D. system
1:49:11 Advice for undergrad, master & Ph.D students
1:51:23 Dealing with Imposter syndrome
Переглядів: 2 027
Відео
Phymaths podcast # 49 || Guest: Dr. Zohar Komargodski
Переглядів 6 тис.21 день тому
*Description* Dr. Zohar Komargodski is a theoretical physicist at the Simon center for Geometry and Physics and he works on RG flows, generalized symmetries, and condensed matter physics among other things. A list of his works can be found in the link below. *Some links* 1) Dr. Komargodski's works: inspirehep.net/authors/1021214 2) Link to the high energy physics resources page on my website: h...
What does the string theory job market look like?
Переглядів 1,7 тис.Місяць тому
*Description* I discussed the current state of the job market in string theory research with Dr. Raghu Mahajan. *Some links* 1) Link to the high energy physics resources page on my website: hassaansaleem.com/graduate-level-theoretical-physics-resources-in-progress/ *Contact Info* My website: hassaansaleem.com Follow on Instagram: hassaan.3142 Join the Whatsapp channel: whatsapp.c...
Phymaths podcast # 48 || Guest: Dr. Raghu Mahajan
Переглядів 4,9 тис.Місяць тому
*Description* Dr. Raghu Mahajan is a theoretical physicist at ICTS Bangalore, working on the problems regarding instantons. He has previously worked on the Island's approach to Black Holes. A list of his works can be found in the link below. *Some links* 1) Dr. Mahajan's works: inspirehep.net/authors/1229066 2) Link to the high energy physics resources page on my website: hassaansaleem.com/grad...
Why gravity NEEDS to be QUANTIZED
Переглядів 1,4 тис.2 місяці тому
*Description* Dr. David Wallace explains why it is necessary to quantize gravity. He refers to the Page-Geilker experiment (paper linked below) and argues that the necessity of quantizing gravity is an experimental fact. *Some links* 1) Page-Geilker paper: journals.aps.org/prl/abstract/10.1103/PhysRevLett.47.979 2) Full episode: ua-cam.com/video/m_8GXir7jYA/v-deo.html 3) Link to the high energy...
Phymaths podcast # 47 || Guest: Dr. Harold Erbin
Переглядів 1,2 тис.2 місяці тому
*Description* Dr. Harold Erbin is a theoretical physicist who works on string field theory and string compactifications. He uses AI to solve problems in theoretical physics and is the author of the most recent book on string field theory. A list of his works can be found below. *Some links* 1) Dr. Erbin's works: inspirehep.net/authors/1273902?ui-citation-summary=true 2) Link to the high energy ...
Phymaths podcast # 46 || Dr. David Wallace
Переглядів 1,9 тис.3 місяці тому
*Description* Dr. David Wallace is a philosopher of science and a physicist, with doctorates in physics and philosophy. He works on the foundations of physics, and he is a proponent of the many worlds interpretation of quantum mechanics. His list of works can be found below. In this podcast episode, we discuss the "philosophy of physics" lens to look at different topics in physics. *Some links*...
Proving background independence of STRING THEORY
Переглядів 9463 місяці тому
*Description* This clip is from an upcoming podcast with Dr. Harold Erbin. Proving that string theory is background-independent is a major success of string field theory. Dr. Harold Erbin explains which particular problems regarding background independence have been solved using string field theory. *Some links* 1) Link to the high energy physics resources page on my website: hassaansaleem.com/...
Towards solving A MAJOR problem in STRING THEORY
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Towards solving A MAJOR problem in STRING THEORY
Phymaths podcast # 45 || Dr. Fernando Quevedo
Переглядів 1,8 тис.4 місяці тому
Phymaths podcast # 45 || Dr. Fernando Quevedo
Phymaths podcast # 44 || Dr. Suvrat Raju
Переглядів 3,7 тис.4 місяці тому
Phymaths podcast # 44 || Dr. Suvrat Raju
Opinions on deSitter spacetime in string theory
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Opinions on deSitter spacetime in string theory
Phymaths podcast # 43 || Dr. Jay Cummings
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Phymaths podcast # 43 || Dr. Jay Cummings
Phymaths podcast # 42 || Dr. Joseph Conlon
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Phymaths podcast # 42 || Dr. Joseph Conlon
Phymaths podcast # 41 || Dr. Samir Mathur
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Phymaths podcast # 41 || Dr. Samir Mathur
Phymaths podcast # 40 || Dr. John Donoghue
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Phymaths podcast # 40 || Dr. John Donoghue
Phymaths podcast # 39 || Dr. Antonio Padilla
Переглядів 1,1 тис.8 місяців тому
Phymaths podcast # 39 || Dr. Antonio Padilla
A short story of the idea of EPR=ER.
Переглядів 1,1 тис.9 місяців тому
A short story of the idea of EPR=ER.
What works did Leonard Susskind do?
Переглядів 7 тис.11 місяців тому
What works did Leonard Susskind do?
Phymaths podcast # 38 || Dr. Cliff Burgess
Переглядів 1,8 тис.Рік тому
Phymaths podcast # 38 || Dr. Cliff Burgess
Which textbooks to read for undergraduate level physics?
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Which textbooks to read for undergraduate level physics?
Phymaths podcast # 37 || Dr. Nirmalya Kajuri
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Phymaths podcast # 37 || Dr. Nirmalya Kajuri
Short story of Roger Penrose's work on conciousness
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Short story of Roger Penrose's work on conciousness
Phymaths podcast # 36 || Dr. Thomas Van Riet
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Phymaths podcast # 36 || Dr. Thomas Van Riet
Who will win the physics Nobel Prize 2023? (My guesses)
Переглядів 9 тис.Рік тому
Who will win the physics Nobel Prize 2023? (My guesses)
Comment as you may, none of you or us is an atom on one of Witten’s hair follicle.
I have a question to all these physicists..."What are they trying to get to or prove with all these theories?"Why string theory is required? What is it going to give us finally?
Or it's just okay to be curious and open-minded and have interesting people on your podcast for others to listen to. It's the Joe Rogan approach. The second you start being a snob and saying this person can't be on and this person can't be on because they are dumb or stupid you have closed yourself off and you lose many opportunities for growth.
Please approch arjun bagchi from iitk
@2:43:42🙏Thank you Hassaan for bringing Prof. Zohar for the podcast
But he doesn't have a hobby.
Nah, thats crazy! Can you calculate.the probability of me seeing quark moving to a higher state of energy
Don't compare him with Newton and Einstein . He has not given a single scientific theory (tested)
please create a video why string and loops are wrong....
Huge respect to Prof. Sen and the presenter. Let his students blossom and carry it forward
Human species has split into those super intelligent ones and the rest of us . I shouldn’t be classified along with people who are so far ahead of the curve.
None of his theories are tested and provided evidence to be correct. He is a great mathematician but bad scientist
One of the great content, I found on youtube...
Thanks for watching and your praise ✌️
Your speaking tone is very similar with European Nice pronounciation
I knew he was scary to the other scientist but I didn’t know he was close to Einstein in genius…I love how he was raised tho and how his Father worked with him.
My goodness, the literature survey that has gone into making of this video, in itself, deserves a PhD from an Ivey league university.
Thanks for the praise. Glad you liked it ✌️
Wow. Found your channel in my feed. Can you please do a video on quantum computing.
Will think about in. I am in the last stages of my PhD. QC video will take some time. Thanks for the suggestion.
This are some proudly instances as a bengali...coz these are the people who not only make us proud...but also inspire us to keep achieving greatness by doing something breakthrough.. there's no doubt that bengalis has always a great impact in the Indian and the world science sphere❤❤ I wish highschool students watch this kind of videos and get inspired to get into research and innovation😢 Rather than consuming contents of a random northie sharma ji ka londa londi cracking IIT AIMS and getting High lpa jobs in US
God Damn! Love 'em!
I learnt so much qUAntum physics frOM THIS video than i learn from scrolling internet
Good to know.. Glad that you liked it.
Roger Penrose says just the opposite - that quantum mechanics needs to be gravitized.
Yes, it isn't a new opinion TBH. Many people who worked primarily on GR thought that QM needs to change and GR is fine (e.g. Hawking and Chris Isham thought this).
This Video itself is a PhD. What a content! Huge Respect
Thanks. I am glad that you liked it ✌️
What’s your opinion on gravity induced wave function collapse and Jonathan Oppenheim’s stochastic gravity? Or any other alternatives to quantizing gravity for that matter? Any way none has any evidence.
There's another mistake in the movie when Ramanujan and Major McMahon meet to compare their results for P(200). Ramanujan's number is 3,972,999,029,388, and McMahon's number is 3,972,998,029,388, only 1,000,000 different, and McMahon exclaims, "By God. Within 2%!" Well, 1,000,000 of 3,972,998,029,388 is 2.5167e-7 different in scientific notation, or .00000025167, or .000025167%. In mathematics, and more specifically calculus, a 2% difference would be intolerable. Two percent of 3,972,998,029,388 is 79,459,960,588, or nearly 79.5 billion.
Really well done interview, good job Hassaan
Thanks ✌️
I believe E. C. George Sudarshan contributed more than this Ashoke Sen.
No where in this video a comparison between Sen and Sudharshan has been made. It is very possible that if you compare their contributions, Sudharshan's contributions come out as more important. It isn't claimed here that Sen is the biggest Indian physicist in the modern era (that's simply not true). However, using the words like "this Ashoke Sen" is very very disrespectful towards him.
@@Phymaths This demands video on Sudharshan.
@ksdnsdkumar1375 Hello my friend🙏please imagine what Sudarshan sir would say to us if we make this remark to him.. He would tell us to focus in Physics Exploration right? that is what he have done all his life right? He fully focus on his Physics explorations and didn't care about who comes first or second.. and I am sure that Ashoke sir too fully focus on his works instead of caring about first or second. If you see both of their interviews this thing is clear right? I know Hassaan through UA-cam for more than a year and he is person who gives respect to both of these Physicists without any partiality and also tries his level best to bring to us science ideas as genuine as possible. He is currently in his last year of research so have a lot of academic things to get organised. But I am sure(just my opinion, I am not putting you under pressure Hassaan) that oneday he will make a video of Sudharshan sir:) like you I too would love to hear about his life and works:) I am living in a neighbouring district to where Sudarsahan sir used to live in his childhood so I feel more thrilled:)
@@ksdnsdkumar1375May I get your name Sir so that I can find your works ?
one of the great interview i have listened here
Thanks. I am glad that you enjoyed it.
What about Blundell? It has many exercises too.
It can be used as a pre QFT book but it won't teach you hardcore QFT calculations.
Hons porte giye sunechi onar kotha, Ashok Sen sir prochar bimukh ek praggyo rishi
Hi Hassaan. first of all thanks for the videos which helped me a lot I have a doubt at 11:01 the distance x’ is measured by moving frame s’ which means x’ is not proper length it (x’) should be less than proper length because it is measured in moving frame due to which length contracted so in s frame the length should be (gmma)(x’) instead of (x’)/gamma if we consider the event p in s frame please clarify it where i misunderstood the concept once again thanks
Just gave TIFR and not gonna clear the cutoff......ohhh dear sadness why dont you go away
@Jcactus213 hello my friend:) In 2023 I had tried this exam for doing PhD in mathematics. Even though I am MSc Physics they allow us to do PhD in maths if we could clear their entrance and interview, I knew some BSc level maths when I gave tution for some students then I prepared for a whole six months to touch over the MSc Maths topics and I realized that my six month preparation was no where near the exposure to maths a student will get in Two year MSc maths.. I didnt got selected. But now I am fully foccused on CSIR NET FE 2025:) from 2019 after my MSc I have been trying and trying for different exams and it is from the last two years that I am properly preparing without my thoughts wandering off to other topics. Last time I was close to JRF by 4 marks and this time I am preparing my very best to obatin the JRF for my PhD in Physics:) So do not loose hope... with focus and determination you try and try again , each time improving more and more by analysing what went wrong the last time and finally you will be able to do it. Each day you ask yourself "If the exam is today have my preparation reached to a level that is enough to get the JRF? if not then what am I to do next? which portions should I understand more? should I change the book I have taken for QM?" like this always keep a self talk with yourself to stay focussed and motivated:) All the very best my friend✌:)❤
Also you focus on the thing you want to do next it will help us get out of sadness, if we stay in sadness it is like holding on to hot stones and saying that our hands burning, we have to let go of the rocks to stop our hand from burning right? like this if we are in the Domain of Sadness we have to go through all the rules of this domain, the rules of this domain that I have felt includes difficulty in thinking and making progressive decisions, sleeping all the time and waiting for things to clear up in the mind, a psycological unwell feeling that seems to run back and forth from bottom of my jaw to the chest. it is only when we get ourself out of this domain we can take decisions wisely and start to work towards our goals.
@@rajkiran6707 damn man just like to say thank you and my eyes got bit wet while reading your comment. i am actually preparing for IIT JAM which is now 28 days left to for the exam and i am mechanical engineer i resigned my JOB from my company ,took drop started preparing for IIT JAM and TIFR. lets see what happens. only when i was in 10 th standard i added it in my bucket list to have Masters and Phd in Physics. but im afraid man , I'm 24 years old now so its hard staying home. but your comment has motivated me still.......thank you so much my big brother. passion for Physics has lead us both to this acquaintance.
@@Jcactus213 yes I can understand about the difficulty in staying at home issue when we get more aged and we have to provide our family support right? I am now 30 and for the last 5 years I did all I can from my part taking tutions to support my family and also my father works really hard to support me and my mother, mother from her side do some tailoring to support me and father. Through this triangulation we try our best to support one another:) but there were times at initial stages after my MSc I was not focussed so a great delay have occured for me to get into PhD, but now I am focussed and I am determined to get into PhD in the upcoming academic year of August. You are truly passionate to do Physics as you have given up your job for it and is preparing your best to clear the exam and that's truly amazing. In the upcoming 28 days stay focussed and cover all the important problems from previous year IIT JAM question papers and workout as much as problems you can and on the day of the exam you reach the exam centre in your most focussed and prepared state ever and give it your very best! Unlike TIFR which do not even publish our entrance score( if I remember correctly) JAM however is a very good opportunity as if we get pass the cutoff we will get a chance to get into MSc alteast somewhere in India and we can grow from there:) All the very best my friend stay focussed on your dream:)
@@Jcactus213 Your Dream is Your Motivation and Your Hardwork... Your Signature in Life!
Sir what topics of mathematics are used in string theory...
as a uk hep-th phd student, that intro just hits so hard. it really sucks that I have to incur a massive opportunity cost just because I would dare to want to contribute to science
I talk with prof zohar everyday. This video is too good. Thanks hassaan bro. Best YT in physics interviews
Much enjoyed this, especially finally speaking about condensed matter physics in relation to string theory and ads/cft. Well done
Please invite condensed matter physicists too ! Love this channel.
Thanks
loved this!!! Thank you!
My pleasure ✌✌
Thankyou from Australia for this amazing episode, great questions and lots of information in this two hours.
My pleasure. Glad that you liked it.
Love these podcasts, I’m learning so much from them
How are you? Been kinda busy these days.