Fantastic lectures. I had studied QM before but this presentation makes it so comprehensible
@girishtripathy3354
3 жыл бұрын
My left ear understood better than my right ear. Thanks prof
@girishtripathy3354
3 жыл бұрын
@@MsMyrule ikr
@GuruCharanGupta
7 жыл бұрын
Hi! around @7:48 the subtitle says "and real exponential solutions depend on the sines" 'sines' should be 'signs' @15:21 it says "know the sine" but sine -> sign @22:29 it says "8x psi plane" it should be "eta-xi plane"
@mitocw
7 жыл бұрын
Thanks for the feedback! The subtitles have been updated. :)
@ismahanemansouri9268
2 ай бұрын
Awesome thanks prof 😅 I am watching from Algeria I am a theoretical physicist and qm is crucial for us , or for all modern physics in general 😅
@igrib5852
Жыл бұрын
"You'd better do something about that cough"
@silvadexter3222
6 жыл бұрын
very clear !!!! ty for lecturing
@amirkhedri4562
9 ай бұрын
I have a question sir. In the case where |x|
@loveforkitten2721
6 жыл бұрын
You are really wonderful Sir. 😊😊😊😊😊😊😊😊😊😊
@aartikhemnani3245
5 жыл бұрын
at 19:51 the kappa square + k square = some quantity , But left hand side is unit less but right hand side have some units how it is possible
@BL1zZ4Rth
4 жыл бұрын
They are all unit-free. [ V0 ] = [ E ] = [ M L^2 T^-2 ] [ hbar ] = [ E T ] = [ M L^2 T^-1 ] [ m ] = [ M ] [ a ] = [ L ] k^2 = (2m) (hbar^-2) (V0 - |E|) => [ k^2 ] = [ (M) (E^-2 T^-2) (E)] = [ (M) (E^-1) T^-2 ] = [ M (M^-1 L^-2 T^2) T^-2 ] = [ L^-2 ] => => [ η ] = [ ka ] = [ (L^-2)^(1/2) L ] = [ 1 ] thus unitless ,same with η^2 and we get the same result for κ (kappa) and by extension ξ and ξ^2, since the only difference between k and κ(kappa) is the replacement of the term (V0 - |E|) with |E| which we already know have the same units. Now using that [ k^2 ] = [ L^-2 ] ,from the end of my first line of calculation we get: z0^2 = (2m hbar^-2 V0) (a^2) => [ z0^2 ] = [ k^2 a^2 ] = [ L^-2 L^2 ] = [ 1 ] and thus is also unitless.
@shannonramirezslater4909
3 жыл бұрын
great lecture. Whoever that was coughing like a person on their deathbed, take some cough drops man. That was so distracting
@TonalWorks
3 жыл бұрын
Or even better would be to stay at home, and so preventing the whole lecture hall from getting infected. Annoying and also inconsiderate
@diags_1109
2 жыл бұрын
@@TonalWorks you think that was annoying there is someone in my one lecture that constantly snorts his snot, like the snoring noise, during the first test they were going at it every like 20 or maybe less seconds for an hour and twenty minutes
@cafe-tomate
2 жыл бұрын
Waw that was a blast!
@not_amanullah
Ай бұрын
Thanks 🤍❤️
@jerrydong8224
3 жыл бұрын
Was searching up the finite curve song and stumbled upon this
@mwangushyafrancis8383
6 жыл бұрын
i greatly appreciate the presentation. i like it
@not_amanullah
Ай бұрын
This is helpful ❤️🤍
@aartikhemnani3245
5 жыл бұрын
ok i think some mistakes are there we can t ignore the negative signs because wave function changes ..
@Leonugent2012
3 жыл бұрын
If you’re able to learn quantum mechanics you can learn it here
@keshavmittal1077
2 жыл бұрын
sir, what is the meaning of energy is negative?
@aimalkhan3229
5 жыл бұрын
Sir what is the difference between particle in potential well and particle in a box?
@res0nanc320
5 жыл бұрын
The 'box' is a specific potential well.
@vishnuakundi4766
3 жыл бұрын
The box is 3-dimensional and so you will have partial derivates wrt the 3 coordinates of position (instead of just d/dx)
@adosar7261
5 жыл бұрын
Does any force exist in this potential well ? Both inside and outside the well the derivative of potential energy with respect to position is 0 therefore zero force. So what is the point to have 2 different potentials ?
@srivishnudasu1694
4 жыл бұрын
14:06 if we are trying to find energy eigenstates , then they are supposed to be orthonormal anyways. why try to normalize at all?
@javierortiz2128
3 жыл бұрын
My professor did her post-doc at MIT and she cannot teach quantum mechanics at all. I had to go to the source to find a better instructor xD
@zphuo
6 жыл бұрын
Why k and kappa need unit-free??
@michaelbenisty2116
6 жыл бұрын
ZiPan Huo
@lukschs1
Ай бұрын
Como el picoo, no se entiende nada
@peterpalumbo3644
5 жыл бұрын
Can you do something about the noise from the audience. It is very hard to listen to the instructor with all the background noise.
@STKeTcH
2 жыл бұрын
I'm so glad I didn't go to MIT
@pankajchaurasia4022
5 жыл бұрын
not good ,could have been more understandable
@HumbertLaxness
11 ай бұрын
why is it always the Indian complaining, i have seen your quality of lectures on KZitem lol, completely incomprehensible
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