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Homework Help: Creation operator problem

  1. Jan 29, 2015 #1
    Anyone having an idea of how to solve problem 3a) file:///C:/Users/Administrator/Downloads/handin1%20(2).pdf ?

    I've been stuck for a great while but have not idea.
  2. jcsd
  3. Jan 29, 2015 #2
    on part 3b) is it correct to argue that since you integrate away the x-dependence in the number operator that according to the heisenberg equation [H,N]=0 since both the partial derivative and total derivative of N is zero?
  4. Jan 29, 2015 #3


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    Education Advisor
    Gold Member

    You know, I'm having a great deal of difficulty reading that file. :w Maybe you could hold it up a little closer to *my* screen?
  5. Jan 29, 2015 #4
    Why can't you read the file? file:///C:/Users/administrator/Downloads/handin1%20(2).pdf
  6. Jan 30, 2015 #5


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    Staff: Mentor

    Because it's on your computer!
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