Dirac notation

[@albertliu2599]

Check your understanding: . . . . 1: H applies on the right state |ψm>, and return Em|ψm>. Em is just and number and get outside of the braket. So Hnm = Em 2: Hnm is a diagonal matrix with values E1,E2...En on its diagonal line. 3: a+|ψm> and returns 1*|ψm+1>. a+nm = . 4: a+nm is a off-diagonal matrix with values 1,1,1,1,1.... on the line just below the diagonal line.

[@PatiparnPojanart]

Thank you very much. I could not belive myself that I can finish all of your clips in this channel successfully. My knowledge about Quantum mechanics and High level of mathematics have rapidly evolve. (So, I have many states of energy🤣) And from now on, I decided to learn master and doctoral degree in the near future.

[@AlejandroPerez-if7mc]

Hey buddy, your channel is very good, very helpful for getting all this concepts altogether, some of us really need it. U beat Susskind's course in clarity and content by far.

[@anshumanverma3176]

Completely agreed!!!

[@ethangraybrook-paul6388]

Fantastic video, had 3 or 4 different concepts all click for me

[@solsticetwo3476]

At 13:30, a_n are complex numbers, not vectors; and Q_mn are matrix elements

[@mgchevelle68]

these videos are very helpful. thank you

[@natpakistan9334]

Sir please can you tell me that how you made these videos I mean which setup you use. I pad, mobile phone and which kind of note software you uses. These hand written videos are really beautiful and i also want to make like these video so please tell me.

[@guitar0wnz]

Saving my damn life man, love these videos

[@wajihazia912]

what is the difference between eigenstate and eigenfunction? it is used interchangeably in the Griffith's book

[@abhibanerjee4457]

both are same

[@bazarovism]

wajiha zia same. Eigenvector is also same

[@general_paul]

Both are same. Functions describe individual states, so even if someone says eigenstates, it is correct in QM sense, mathematically it MIGHT be incorrect to say, but we aren't mathematicians

[@yashsingh6793]

Where are you my friend

[@fernandajb5042]

Susskind's is not very organized as Brant is...Also, he lacks patient

[@Crusherdub]

+Maria Jongewaard De Boer agreed. Don't deny susskind is brilliant but i find his lectures to be hard to follow and really get into.. Brant is the best.

[@Squirroo]

thanks man!!!!! SAVIOUR

[@pixelberrychoicespodcast2.59]

Jiii