Abstract
Two-dimensional electron layers when placed in perpendicular electric and magnetic fields can have a potential well with two minima for the electronic motion normal to the surface. Such double-minimum potential wells also arise for highly excited Rydberg states of atoms in crossed electric and magnetic fields and in certain molecular potential curves. We develop and apply a WKB formalism to such double-minimum wells and calculate the energy splittings that arise when one is near degeneracy, that is, when either well, considered independently, can support a bound state at the same energy.
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