On the vibron-polaron damping in quasi 1D macromolecular chains

The properties of the intramolecular vibrational excitation (vibron) in a quasi 1D macromolecular structure are studied. It is supposed that due to the vibron interaction with optical phonon modes, a vibron might form partially dressed small polaron states. The properties of these states are investi...

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Bibliographic Details
Published in:arXiv.org 2018-02
Main Authors: Cevizovic, D, Chizhov, A, Reshetnyak, A, Ivic, Z, Galovic, S, Petkovic, S
Format: Article
Language:English
Subjects:
Damping
Dependence
Molecular chains
Molecular structure
Phonons
Polarons
Thermal baths
Online Access:Get full text
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Summary:The properties of the intramolecular vibrational excitation (vibron) in a quasi 1D macromolecular structure are studied. It is supposed that due to the vibron interaction with optical phonon modes, a vibron might form partially dressed small polaron states. The properties of these states are investigated in dependence on the basic system parameters and temperature of a thermal bath. We also investigate the process of damping of the polaron amplitude as a function of temperature and vibron-phonon coupling strength. Two different regimes of the polaron damping are found and discussed.
ISSN:2331-8422
DOI:10.48550/arxiv.1802.07424