Topics In Quantum Mechanics Video #18: Momentum And Position Commutator

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Topics In Quantum Mechanics Video #18: Momentum And Position Commutatorby wpjljron.Topics In Quantum Mechanics Video #18: Momentum And Position CommutatorHundreds of FREE Problem Solving Videos And FREE REPORTS from www.digital-university.org.

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10 Responses

  1. Tang Yong Zhong2 June, 2014 at 3:26 pm

    THIS IS SO MUCH USEFUL !!!!! IT MAY HAVE SAVE MY FINAL TOMORROW !!! I was
    doing hamiltonian with momentum but i don’t understand at all the process
    why until i discover this video. Oh my !! you saved my day !!!
    *sorry for the caps* hahaha XD

  2. intergalactic trashcompactor2 May, 2014 at 10:49 pm

    Wow. A lot of thinks just made sense. The potential function ‘primer’ at
    the end was nice

  3. yashley digumber27 March, 2014 at 4:55 pm

    awesome 🙂 thanks

  4. Doreen Stanley8 March, 2014 at 7:01 am

    You saved me!!!! Thanks a million!!!!

  5. Lyithe17 November, 2013 at 2:11 pm

    This is sooo useful!! Many thanks.

  6. forfiterszwagier18 May, 2013 at 12:26 pm

    ok, but could you tell me what to do in case of such commutator: [p^2,x]?
    If possible, step by step?

  7. herrzyklon15 May, 2013 at 10:41 pm

    Really good, thank you

  8. Tom Warren10 May, 2013 at 8:23 pm

    does x hat acting on dell x phi x dell x phi?

  9. Tom Warren10 May, 2013 at 8:22 pm

    why do they cancel … because on the lhs shouldn’t you have x hat (where
    hat denotes operator)dell x phi whereas on the rhs you have dell x (x phi)
    where we are thinking of x as a just x (because x hat phi = x phi). I did
    the same method as you and it looks nice to be able to do this but I
    couldn’t think why x hat dell x phi equalled x dell x phi?

  10. Mark T2 May, 2013 at 3:49 pm

    Thank you! I’ve been searching around for some good QM videos. I think I
    might have a chance after all to leave this class with more than a passing
    grade… like a basic understanding of how “to do” QM.

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