Quantum Mechanics degeneracies in 3d potential

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SUMMARY

The discussion focuses on the degeneracies and symmetry of the position probability distribution for a particle in a three-dimensional potential with cubic symmetry. The six identified degeneracies arise from the permutations of the coordinates (x, y, z). The symmetry of the position probability distribution is determined by the weighted average of these wave functions. Additionally, the discussion highlights the importance of identifying degenerate energy levels, particularly in the context of an infinite cubic well.

PREREQUISITES
  • Understanding of quantum mechanics principles, particularly wave functions
  • Familiarity with three-dimensional potentials and cubic symmetry
  • Knowledge of degeneracies in quantum systems
  • Experience with infinite cubic wells in quantum mechanics
NEXT STEPS
  • Explore the concept of wave function permutations in quantum mechanics
  • Study the derivation of degenerate energy levels in infinite cubic wells
  • Investigate the implications of symmetry in quantum mechanics
  • Learn about the mathematical representation of position probability distributions
USEFUL FOR

Students of quantum mechanics, physicists studying particle behavior in symmetrical potentials, and educators seeking to clarify concepts of degeneracy and symmetry in three-dimensional quantum systems.

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Homework Statement


What are the possible degeneracies and what is the symmetry of the position probability distribution in the case of a particle subject to a three-dimensional potential with cubic symmetry?

Homework Equations


n/a

The Attempt at a Solution


With a three-dimensional potential, there are 6 ways to look at the wave function.
(x,y,z)
(x,z,y)
(y,x,z)
(y,z,x)
(z,x,y)
(z,y,x)

Those are the degeneracies. The symmetry of the position probability distribution relies on the weighted average of the wave functions.
Is this correct or is there a more direct way to answer this?
 
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You can directly find the degenerate energy levels for an infinite cubic well. It's a worthwhile exercise.

The attempt at a solution is only valuable to understand that directions and their wavefunctions aren't unique for a cubically symmetrical potential.
 

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