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Dynamics of the Davydov D-squared Ansatz with off-diagonal coupling

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Dynamics of the Davydov D-squared Ansatz with off-diagonal coupling

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Title: Dynamics of the Davydov D-squared Ansatz with off-diagonal coupling
Author: Zhao, Yang; Luo, Bin; Ye, Jun
Copyright year: 2010
Abstract: Following the Dirac-Frenkel time-dependent variational principle, dynamics of a one-dimensional Holstein polaron with off-diagonal exciton-phonon coupling is probed by employing the Davy dov D2 Ansatz with two sets of variational parameters,one for each constituting particle in the exciton-phonon system. A close examination of variational outputs from the two trial states reveals fine details of the polar on structure and intricacies of dynamic exciton-phonon interactions. Superradiance coherence sizes, speeds of exciton-induced phonon wave packets, linear optical absorption, and polaron energy compositions are also included in the study.
Subject: DRNTU::Science::Physics::Atomic physics::Solid state physics.
Type: Journal Article
Series/ Journal Title: Journal of chemical physics
School: School of Materials Science and Engineering
Version: Accepted version

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