Variational Squeezed Davydov Ansatz for Realistic Chemical Systems with Nonlinear Vibronic Coupling.
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DOI: 10.1021/acs.jctc.1c00859
Abstract: Chemical systems normally possess strong nonlinear vibronic couplings at both zero and finite temperature. For the lowest-order quadratic couplings, here, we introduce a squeezing operator into a variational coherent-state-based method, Davydov ansatz, to simulate the… read more here.
Keywords: nonlinear vibronic; variational squeezed; davydov ansatz; chemical systems ... See more keywords