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The animation shows position-space energy eigenfunctions for a pair of finite square wells. The separation, D, between the wells can be changed with the slider, as well as the quantum number, n, by click-dragging in the energy spectrum on the left.  In the animation, ħ = 2m = 1. Restart.

1. How does the energy spectrum depend on the individual well width?
2. How does the energy spectrum depend on the well separation?
3. Describe the energy eigenfunctions for the default well separation.
4. Why is it that the ground states are always even (parity)?