Lecture - 9 Quantum Physics

[@yamansanghavi]

I enjoy this more than a movie. Prof. Balakrishnan is GOD LEVEL.

[@abdou290]

excellent teacher. Better than MIT courseware. I wish I had teachers like him in my higher education. He is not using any paper or notes. Amazing!

[@nonporous]

Wow looking at the square well in the momentum basis was very enlightening! These lectures offer a lot more depth than any professor I know, it sure is better than reading Griffiths too.

[@hahahamatsuyama9408]

He is definitely without ''uncertainty principle'' the best teacher I have ever encountered, he even notice the space topology itself, which is the underlining assumption we all take for granted, and ask the influence of the topology on the restrained condition!!!

[@Shanu-v3e]

Prof v Balakrishnan ❤

[@ManojTiwari-ky3fl]

Lecture 09: The particle in a Box ( 1D, 2D, finite well, delta potential)

[@tanmaysingal0]

There's no delta-potential in this one.

[@nickpreetic4670]

@@tanmaysingal0 yes there is, particle in a box is given by a delta potential at either end of the box to prevent its escape

[@tanmaysingal0]

@@nickpreetic4670 a delta-function still allows escape. What you mean is an infinite barrier to either side of positive potential energy. That isn't a delta function.

[@tobiramasenju4549]

​​Lol thats basically the delta potential. Stop yapping pa*j**t​@@tanmaysingal0

[@sumanthdontharaju2073]

What a wonderful, wonderful lecture! Thank you Prof Balakrishnan, It was a delight watching your lectures in Quantum Mechanics

[@collegev]

the insight of why all the eigenstates of the hamiltonian are not eigenstates of the momentum operator was shattering! and it was especially delightful because i guessed the answer as prof b was pushing hard to get the answer from the students in the class "somewhere in there i made a statement that is not correct. what is it?" this is what effective pedagogy is. prof b is what they call a rishi or a sage in india.

[@sahil9547]

Last line 🙌🏻

[@saikatsantra3770]

There is no degeneracy in one dimensional problem provided the underlying space is simply connected, the circle is not simply connected. So particle in a one dimensional ring has degeneracy and it is actually doubly degenerated… very nice

[@AlexandreHefren]

1 hour of video = at least 2 hours to watch ant take notes. U.u

[@ayeshakawakil845]

Professor Balakrishnan is 🔥, love you from Bihar

[@chiragsharma5050]

Iam from electronics can I directly start qm from here?

[@Raj-gc2rc]

@@chiragsharma5050no I don’t think so unles you have all the prerequisite mastered

[@pradhumndixit7353]

Wow ❤ Great sir ....enjoying quantum mechanics first time

[@DaveJohnsonsuvam]

i dont know if shankar is inspired from balakrishnan or its the other way round .. but both of them approach the subject efficiently and in a similar manner ..

[@pranavgupta2138]

Aag laga di sir ji ne🔥🔥🔥

[@frisknikki]

fabulous lecture but fantastic in 16th minute....

[@03Kabbotta11]

So Balakrishnan's course is based off the Principal's of QM book by R. Shankur from Yale or are you referring to a different Shankur. I've always wondered this, and where did you hear this if you don't mind.

[@gouranggehlot4896]

It looks like that but the treatment of shankar is not as abstract as Balakrishnan and there are certain things you get in his lectures which aren't in the book and vice versa.

[@AmanGupta-fd6ig]

@1:0:04 in the wave function part of the rectangular box shouldn't be 2over \sqrt(L_1*L_2) ?

[@Hkj2000]

Yes

[@sahil9547]

Yes

[@akshayeds2957]

at 32:00 it's negative not plus

[@Vercongent]

Question: When defining the potential he said it is 0 for 0

[@burhan8795]

all possible eigenvalues of the of the position operator

[@maujo2009]

@nonporous Read also Sakurai.

[@PetraKann]

A 1-D box?

[@swasasheeru]

great, thanks

[@goutamrajkumar14]

good

[@deepmondal323]

God