@asmaa.ali6

One correction: at 8:34 actually we can change the order of the sum in the exponent because D operator is UNITARY as you nicely proved earlier NOT simply because addition of operators is commutative as here operators are the power of exponent. Thank you so much for these great videos :)

@pawejakubik3095

Thank you so much for making QM that intuitive. I'm taking Engineering Physics course and it's really helpful!

@dbf72829

Best qauntum mechanics video on yt not time consuming, fun and also academic and rigorous...

@warmesuppe

Passed my quantum mechanics exam today (Bachelor in physics KIT).
With your help and your great videos!
Thank you very much.

@eeshgupta9191

I ABSOLUTELY ADORE YOU!!!! Thanks for making this content and your accent is impeccable. I am currently trying to learn cavity QED and your videos are a blessing!!!! Gosh I wanna be a physicist just like you!

@rainsongeng2077

Thank you so much. The original intuitive of the "displacement" is really helpful.

@1619SR

Thank you so much for making QM that intuitive. I'm taking Engineering Physics course and it's really helpful!
Thank you so much for making QM that intuitive. I'm taking Engineering Physics course and it's really helpful!
Thank you so much for making QM that intuitive. I'm taking Engineering Physics course and it's really helpful!

@Mooriza

Hello. You talked about the displacement operator in this video, which was great. My question is, what is the form of this operator in the phase space in terms of X and P?

@danielborrero9480

Thanks! it would have been interesting to see the displacement of vacuum state on the quadrature space as an application of the displacement operator. Coherent states are quite interesting, I am currently working with them in the light-matter interaction via stimulated and spontaneous emission. There is a lot of issues to be clarified in this topic. Anyway, nice explanation.

@garvitmakkar

Can you please refer us a book or couple of books to study thoroughly Quantum mechanics... 
Great content keep it up🙂🙂

@siddhantak4090

thankyou so much....impressive explanation....

@mehdisi9194

And as allways thank you so much

@Badgamerrrr

It's really great, is it possible to attach the file where you explained as pdf.? If so then please provide it as we can't see all videos again when preparing for exams. :)

@bastiencasini6883

Many thanks for this really clear video. I was wondering, do you have any advice to learn about the Squeezing operator, I am struggling to find good resources on the subject. 
Thanks again for your amazing job !!

@shamitavaroy775

Thank you ma'am, it's really helpful!

@dilanperez3988

First of all. I really love ❤️ your videos : ). Second, I have not managed to convince myself that "this expression is consistent with the adjoint of this expression" (minute 6:50). It leads me to the conclusion that (e^A e^B)^dagger is not equal to e^(B^dagger) e^(A^dagger) but there is an extra factor that must appear. Could anyone explain to me more about this, please?

@assassin_un2890

another good video Thanks, I think one could build the coherent states from expression of displacement operators and decomposing of coherent stetes i mean mathematically i  mean that could be included too to make it more complete aside from the reason that both are eigen state of lowering operator

@romainmorleghem4132

Great video ! Could we see the relation [a,D]=alpha D as an eigenvalue equation for the map [a,.] ?

@subhrajitdalai8469

Please make a video on SCHRONDIGER and Hisenburg picture annd on Quantum dynamics