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A problem based on Quantum Physics 2

  1. Dec 22, 2013 #1
    1. The problem statement, all variables and given/known data

    The wave function of a particle in a stationary state with an energy Eo at time t=0 is ψ(x).after how much minimum time the wave function will be ψ(x) again.

    2. Relevant equations

    3. The attempt at a solution
    ψ(x, t)=φ(x)e^(-iEot/h).intuitively i think the answer should be Eot/h=2π. So t=2πh/Eo.But I am looking for a more rigid analytical method.please help.
  2. jcsd
  3. Dec 22, 2013 #2


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    That's essentially it. If you want to be more pedantic, you could solve ##e^{iE_0 t/\hbar} = 1## for t.
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