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I Why is there only odd eigenfunctions for a 1/2 harmonic oscillator

  1. Mar 10, 2016 #1
    Hi,

    why there is only odd eigenfunctions for a 1/2 harmonic oscillator where V(x) does not equal infinity in the +ve x direction but for x<0 V(x) = infinity.

    I understand that the "ground state" wave function would be 0 as when x is 0 V(x) is infinity and therefore the wavefunction is 0, and therefore the ground state energy level for the half harmonic oscillator is 3(h bar omega)/2.

    I don't get why there wouldn't be even eigenfunctions and energy levels for n=2,4,6 etc.
     
  2. jcsd
  3. Mar 10, 2016 #2

    Nugatory

    User Avatar

    Staff: Mentor

    The infinite potential at 0 implies that ##\psi(0)=0##. The even solutions are all non-zero at that point, so they do not satisfy that boundary condition.
     
  4. Mar 18, 2016 #3
    Thank You!!!!!
     
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