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Energy E in total per level, or per state in level?

  1. Dec 18, 2012 #1
    I'm working on a problem concerning energy levels in a 3D box.

    I have calculated the energy levels in eV using the standard equation:

    En = { { ∏^2 (h-bar)^2 } / 2ma^2 } (n^2 + n^2 + n^2)

    Are these calculated energy levels the total energy per level?

    Or does the energy E calculated using this formula apply to each state within that level?

    Thank you.
  2. jcsd
  3. Dec 18, 2012 #2


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    Staff: Mentor

    I would expect different variables for the different dimensions.
    That is the energy of a single particle in that state (or one of those states, if you have multiple states with the same energy).
  4. Dec 18, 2012 #3
    The 3 dimensions are all equal.
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