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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 | Schools: | School of Materials Science & Engineering | Fulltext Permission: | open | Fulltext Availability: | With Fulltext |
Appears in Collections: | MSE Journal Articles |
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