1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Help Understanding the answer to a Quantum Mechanic problem

  1. Dec 17, 2017 #1
    1. The problem statement, all variables and given/known data



    Screen Shot 2017-12-17 at 23.43.30.png

    The answer is as follows:


    Screen Shot 2017-12-17 at 23.44.23.png

    However they said that time t=0 so I am confused how the exponent has a t in it surely it should be zero. Thanks
     

    Attached Files:

  2. jcsd
  3. Dec 17, 2017 #2

    Charles Link

    User Avatar
    Homework Helper
    Gold Member

    They are telling you in part (b) to write ## O(t) ## in terms of the "eigenstates at t=0". ## O(t) ## is not required to be at ## t=0 ##. (the eigenstates at ## t=0 ##, is what they are referring to).b ## \\ ## Additional note: In the part you labeled "Answer: Unseen" , in the 3rd line, I think those should read ## u^*_m(x) ## and ## u_n(x) ##, without any ## t ## dependence.
     
    Last edited: Dec 17, 2017
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted