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Quantum harmonic oscillator

  1. Jun 10, 2010 #1
    Hello.
    I am trying to use the following equation:
    [tex]a\left|\psi_n\right\rangle=\sqrt{n}\left|\psi_{n-1}\right\rangle[/tex]
    (where a is the "ladder operator").

    What happens when I substitute [tex]\psi_n[/tex] with [tex]\psi_0[/tex]?
     
  2. jcsd
  3. Jun 10, 2010 #2
    oops, sorry for the silly question...
    of course I will get 0.
     
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