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Homework Help: Linear Combination of Wavefunctions

  1. Feb 13, 2012 #1
    1. The problem statement, all variables and given/known data
    psiplus = 1/sqrt(2) (psi(1,2) + psi(2,1))
    Is PsiPlus an eigenfunction of the Hamiltonian operator? If so, what are the eigenvalues for the energy corresponding to PsiPlus in units of (h^2/(8ma)^2)?

    2. Relevant equations
    psiplus = 1/sqrt(2) (psi(1,2) + psi(2,1))

    psi12 =2/a sin(Pi*x/a) *sin (2Pi*y/a) (2D Particle in Box)
    psi21 =2/a sin(2*Pi*x/a) *sin (Pi*y/a)

    3. The attempt at a solution
    I don't understand some of the core concepts yet, so I don't know how to approach this problem.
  2. jcsd
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