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Validity of time-dependent trial states for the Holstein Polaron

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Validity of time-dependent trial states for the Holstein Polaron

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Title: Validity of time-dependent trial states for the Holstein Polaron
Author: Luo, Bin; Ye, Jun; Guan, Chengbo; Zhao, Yang
Copyright year: 2010
Abstract: Validity of three time-dependent trial states for the Holstein Hamiltonian, namely, the D2, Merrifield and D Ansatze has been examined in detail with regards to their deviations from the exact solution to the time-dependent Schrodinger equation. Linear absorption spectra are also calculated as an additional indicator of the Ansatz validity. It is found that the D Ansatz is the most accurate trial state of the three, and all Ansatze fail to provide an adequate description of system dynamics in the weak-coupling regime.
Subject: DRNTU::Science::Physics::Atomic physics::Properties of matter and antimatter.
Type: Journal Article
Series/ Journal Title: Physical chemistry chemical physics : PCCP
School: School of Materials Science and Engineering
Version: Accepted version

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