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Normalize psi

  1. Nov 1, 2009 #1
    I am given a non-normalized wavefunction and asked to normalize it. The function and the attempt will be in:
    http://i35.tinypic.com/2vahvuc.jpg
     
  2. jcsd
  3. Nov 1, 2009 #2

    CompuChip

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    You are correct that you have to calculate
    [tex]\int_{-\infty}^\infty |x| e^{-|x|} \, dx[/tex]
    however you are making the step to partial integration too fast. You have two pairs of absolute value signs in your integrand, which you should get rid of first (hint: how can you write |x| e^{-|x|} without absolute value signs when x > 0? And when x < 0?).

    When you then do the partial integration you need to evaluate an expression such as the one you had, but between different boundaries which give no problems anymore.
     
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