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Question on quadratic fluctuations in the path integral formalism

  1. Jun 10, 2008 #1
    hi,

    could someone please explain to me the attached excerpt, more specifically, why one has to multiply with the ratio.

    any ideas will be welcome!

    thanks
     

    Attached Files:

  2. jcsd
  3. Jun 10, 2008 #2
    can't anyone imagine what the factor

    [tex]\frac{\psi(x\pm a)}{\psi(0)}[/tex]

    might do?
     
    Last edited: Jun 10, 2008
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