@manavmanavchhuneja1
Has to be the best physics tutorial I've seen on youtube and it's way better than most profs do in class.
@sphericalchicken
The commutator of two operators is defined [A,B] = AB - BA, so -[A,B] = [B,A], so whether you get [x,p] or [p,x] with a negative somewhere else doesn't really change the result, just the way it's expressed.
@science_caro
this is an old video but brooo you're saving my life I have a quantum mechanics midterm and this makes so much sense yaaay
@lizXP1
This is by far, one if the best quantum mechanics explanations I have come across on youtube
@aronhegedus
This whole video is very professionally done, I love how neat your writing is, and how clearly you relay the information. Thank you!
@Gismho
Excellent series!!! Thank you Prof. Carlson. Extremely well explained. I'm glued to this series!!!!
@dzarren
At 32:18 you say that the denominator is equal to one, so we can ignore it. You say its because sqrt(n+1) where n is zero so the denominator is 1. But actually it's because the denominator would be sqrt(1!) from the formula for PSI_ n.
@josephhamilton6419
Excellent!! How logical and clear this lecture is. Appreciate it a lot!
@luisbreva6122
Do conmutators have something to do with Poisson brackets?
@buddydiamond8736
I really wish you were my teacher and not who I have now... this was a question on the test and I was completely lost... anyways, I'm very grateful this video exists.
@sibusisiweradebe7842
I have a quantum mechanics test tomorrow and you just saved my life
@fornasm
WOW, I had already done this, but here it is better done and clearer. 1/2 QFT is in this lesson. well done thanks!!
@UcranianoUKR
if you had factored out +imw instead of -imw you would end up with [p,x] and get a different results, how did you know that you want to get [x,p]?
@Steven22453
You're a lifesaver, that's all I have to say.
@JohnVKaravitis
Superb quantum mechanics videos. Your hard work is appreciated.
@ancientmemer5409
While calculating the lowest energy psi(0), where is "i" of the a- ladder operator.
@averagecornenjoyer6348
why can you write a+ in the left side? isn't that implying that the ladder and the hamiltonian commute? (which they seem not to)
@hendriaditjandra6418
Brant, just for this time, I don't fully understand the whole concept of ladder operator. Is ladder operator used to reconstruct the Schrodinger solution or just simplify it ?
@lohchoonhong4508
at 32.26 example, may I know why is (n+1)^1/2 instead of (n)^1/2 as the formula as shown at 31.54?
@NomenNominandum