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- W4387687977 abstract "A systematic adiabatic perturbation theory with respect to the kinetic energy of the heavy component of a two-component quantum system is introduced. The effective Schrodinger equation for the heavy system is derived to second order in the inverse mass. It contains a new form of kinetic energy operator with a Hermitian mass tensor and a complex-valued vector potential. All of the potentials in the effective equation can be computed without having to evaluate sums over the eigenstates of the light system. The most salient potential application of the theory is to systems of electrons and nuclei. The accuracy of the theory is verified numerically in a model of a diatomic molecule and analytically in a linear vibronic model." @default.
- W4387687977 created "2023-10-17" @default.
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- W4387687977 date "2023-10-13" @default.
- W4387687977 modified "2023-10-18" @default.
- W4387687977 title "Adiabatic perturbation theory for two-component systems with one heavy component" @default.
- W4387687977 doi "https://doi.org/10.48550/arxiv.2310.09189" @default.
- W4387687977 hasPublicationYear "2023" @default.
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