Integer and fractional quantum Hall effects: An Introduction

  Рет қаралды 77,516

TAUVOD

TAUVOD

Күн бұрын

Пікірлер: 43
@antoniorossi7178
@antoniorossi7178 9 жыл бұрын
This lecture is so clear and precise. Thanks all of you for loading it.
@suvratrao2129
@suvratrao2129 7 жыл бұрын
Concise and well-explained, this is brilliant!
@exciton007
@exciton007 2 жыл бұрын
Brilliant lecture! A hard topic very intuitively explained!
@davidwilks7437
@davidwilks7437 6 жыл бұрын
This lecture facilitates my 7th grader I am tutoring in applying Quantum mechanics to quantum computing for his Science project, Excellent resource
@LimerickJim
@LimerickJim 5 жыл бұрын
r/Iamverysmart
@brendawilliams8062
@brendawilliams8062 8 ай бұрын
Best wishes to your university. Thankyou
@skilstopaybils4014
@skilstopaybils4014 5 жыл бұрын
I had to look up the meaning of 'intuitive' after this lecture.
@andremoreira2674
@andremoreira2674 4 жыл бұрын
Something that sounds logical or more probable.
@lizihutchinson1480
@lizihutchinson1480 5 жыл бұрын
Great video but who on Earth uses pi for momentum? That threw me until about 40 minutes in where it's labelled.
@zhiqiandu3110
@zhiqiandu3110 5 жыл бұрын
To distinguish from regular sense momentum that does not contain magnetic field. pi the canonical momentum is conserved, p is not
@sotirists990
@sotirists990 4 жыл бұрын
lol same. this should be considered a physics crime!
@casey7411
@casey7411 Жыл бұрын
It's pretty standard notation in the field @@sotirists990
@chenerrera9158
@chenerrera9158 2 жыл бұрын
Thank you so much for this video! Well explained
@17zty
@17zty 3 жыл бұрын
at 11:36, the wavefunction solution is slightly off, where the exp(-x^2/2lB^2) should also shift the x by xk.
@arbab64
@arbab64 8 жыл бұрын
How one finds the width of the plateau for each quantum number? Any formula that determines it?
@helgsig
@helgsig 8 жыл бұрын
M.A. Paalanen's paper was published in PRB, not PRL @ 23:18
@XuanNguyen-le6xg
@XuanNguyen-le6xg 3 жыл бұрын
so touching for an excellent video
@SquashyPan
@SquashyPan 3 жыл бұрын
at around 13:00 , in the orthogonality condition, there is a minus sign missing at the exponential
@jxchtajxbt53
@jxchtajxbt53 4 жыл бұрын
@48.52: I think the second case with 4 flux quanta and 2 electrons the fractional charge is 2/3 e .
@jacoblee7689
@jacoblee7689 5 жыл бұрын
Such a great lecture!
@yangYang-df2zy
@yangYang-df2zy 5 жыл бұрын
The wave function and the neighboring xk and xq are fucking helpful!!!
@danthewalsh
@danthewalsh 6 жыл бұрын
What is the physical justification for choosing periodic boundary conditions along y (aside from mathematical convenience)? Why should the phase at the front of the sample have anything to do with the phase at the back? I don't see why there would physically be any quantization condition here, unless (say) the sample is formed into a ring, or perhaps if the magnetic field ends abruptly on either end of the sample.
@SporeSpood
@SporeSpood 5 жыл бұрын
This is done very often in solid state physics, the boundary effects are ignored when we do this but in the bulk where you are measuring the boundary does not really matter.
@qianhe3420
@qianhe3420 6 жыл бұрын
excellent lecture!
@euanrjb9161
@euanrjb9161 5 жыл бұрын
This is interesting. Didn't understand a word of it but still...
@danielyue3474
@danielyue3474 3 жыл бұрын
Still don't understand why the Fermi energy can be in the n-th gap.
@evaschmid2583
@evaschmid2583 4 жыл бұрын
Thanks! Interesting and funny!
@markfrost9826
@markfrost9826 8 жыл бұрын
This is so interesting Thank you
@marcofsw
@marcofsw 5 жыл бұрын
44:40, is it useful to think of the Coulomb minimization as the electrons "spinning in sync", so that they stay as far away from each other during the "revolutions"? Wouldn't that cause some kind of resonance effect?
@brendawilliams8062
@brendawilliams8062 8 ай бұрын
125 divided by 11390625 in regards to 729 throws many wild cards
@iswarprasadkoirala1229
@iswarprasadkoirala1229 8 жыл бұрын
Nice lecture
@brendawilliams8062
@brendawilliams8062 8 ай бұрын
It’s been hanging around for nine years with merit
@michaelduke1405
@michaelduke1405 2 жыл бұрын
The diaphragm on your microphone is busted. That is causing your output to vibrate. and crackle.
@AppleberrySmith
@AppleberrySmith 7 жыл бұрын
Is that... comic sans?!?!
@keithaprilrovero7955
@keithaprilrovero7955 2 жыл бұрын
당신이 판촉하는 항목을 구입하는 방법
@annankldun4040
@annankldun4040 2 жыл бұрын
pretty dumb to not show WHERE he is pointing with his laser
@hunghoanghunghoang8953
@hunghoanghunghoang8953 3 жыл бұрын
the sound is not good I am quite disappointed
@4pharaoh
@4pharaoh 7 жыл бұрын
Fine lecture, however… I assume the making of the video was a last second decision, since clearly there was no thought, planning, time or a single dollar spent on this. Far better production values have come from people doing cat videos . Come on please, act like you care.
@RegistroDomini-l3y
@RegistroDomini-l3y 2 күн бұрын
I was trading USDT with a friend but we fell out because of something. She gave me an OKX wallet code 『pride』-『pole』-『obtain』-『together』-『second』-『when』-『future』-『mask』-『review』-『nature』-『potato』-『bulb』 and asked me to withdraw the remaining USDT. What is this? How do I do this? Please tell me
@manhpham4807
@manhpham4807 3 жыл бұрын
so touching for an excellent video
@naslunnaslun884
@naslunnaslun884 3 жыл бұрын
the sound is not good I am quite disappointed
@acildwiersa8593
@acildwiersa8593 3 жыл бұрын
the sound is not good I am quite disappointed
@thelmagwein7686
@thelmagwein7686 3 жыл бұрын
the sound is not good I am quite disappointed
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