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2
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Overlap integral between harmonic oscillators of different shapes
In a diatomic molecule, the nuclear potential in the ground and excited states can take different shapes. The coordinates might be displaced and the curvatures might not be the same. For example, we m …
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0
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110
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Hilbert space of a diatomic molecule
In molecular quantum mechanics, it is very common to model a diatomic molecule as a two-level harmonic oscillator with vibrational levels lying within the electronic states:
In most of the textbooks …