Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/91744
Title: Dynamics of a one-dimensional Holstein polaron with Davydov Ansatze
Authors: Zhao, Yang
Sun, Jin
Luo, Bin
Keywords: DRNTU::Science::Physics::Atomic physics::Properties of matter and antimatter
Issue Date: 2010
Source: Zhao, Y., Sun, J., & Luo, B. (2010). Dynamics of a one-dimensional Holstein polaron with Davydov Ansatze. Physical Review B: Condensed Matter and Materials Physics.
Series/Report no.: Physical review B : condensed matter and materials physics
Abstract: Following the Dirac-Frenkel time-dependent variational principle, dynamics of a one-dimensional Holstein polaron is probed by employing the Davydov D2 Ansatz with two sets of variational parameters, one for each constituting particle in the exciton-phonon system, and a simplified variant of the Davydov D1 Ansatz, also known as the D Ansatz, with an additional set of phonon displacement parameters. A close examination of variational outputs from the two trial states reveals fine details of the polaron 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.
URI: https://hdl.handle.net/10356/91744
http://hdl.handle.net/10220/6296
ISSN: 1098-0121
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MSE Journal Articles

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