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Phenomenological position and energy resolving Lindblad approach to quantum kinetics

Kiršanskas, Gediminas LU ; Franckié, Martin LU and Wacker, Andreas LU (2018) In Physical Review B 97(3).
Abstract

A general theoretical approach to study the quantum kinetics in a system coupled to a bath is proposed. Starting with the microscopic interaction, a Lindblad master equation is established, which goes beyond the common secular approximation. This allows for the treatment of systems, where coherences are generated by the bath couplings while avoiding the negative occupations occurring in the Bloch-Wangsness-Redfield kinetic equations. The versatility and accuracy of the approach is verified by its application to three entirely different physical systems: (i) electric transport through a double-dot system coupled to electronic reservoirs, (ii) exciton kinetics in coupled chromophores in the presence of a heat bath, and (iii) the... (More)

A general theoretical approach to study the quantum kinetics in a system coupled to a bath is proposed. Starting with the microscopic interaction, a Lindblad master equation is established, which goes beyond the common secular approximation. This allows for the treatment of systems, where coherences are generated by the bath couplings while avoiding the negative occupations occurring in the Bloch-Wangsness-Redfield kinetic equations. The versatility and accuracy of the approach is verified by its application to three entirely different physical systems: (i) electric transport through a double-dot system coupled to electronic reservoirs, (ii) exciton kinetics in coupled chromophores in the presence of a heat bath, and (iii) the simulation of quantum cascade lasers, where the coherent electron transport is established by scattering with phonons and impurities.

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Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review B
volume
97
issue
3
publisher
American Physical Society
external identifiers
  • scopus:85040962338
ISSN
2469-9950
DOI
10.1103/PhysRevB.97.035432
language
English
LU publication?
yes
id
9d450054-8e82-42f2-9ca8-11c6b0bcc383
date added to LUP
2018-02-05 14:29:54
date last changed
2018-11-11 04:59:52
@article{9d450054-8e82-42f2-9ca8-11c6b0bcc383,
  abstract     = {<p>A general theoretical approach to study the quantum kinetics in a system coupled to a bath is proposed. Starting with the microscopic interaction, a Lindblad master equation is established, which goes beyond the common secular approximation. This allows for the treatment of systems, where coherences are generated by the bath couplings while avoiding the negative occupations occurring in the Bloch-Wangsness-Redfield kinetic equations. The versatility and accuracy of the approach is verified by its application to three entirely different physical systems: (i) electric transport through a double-dot system coupled to electronic reservoirs, (ii) exciton kinetics in coupled chromophores in the presence of a heat bath, and (iii) the simulation of quantum cascade lasers, where the coherent electron transport is established by scattering with phonons and impurities.</p>},
  articleno    = {035432},
  author       = {Kiršanskas, Gediminas and Franckié, Martin and Wacker, Andreas},
  issn         = {2469-9950},
  language     = {eng},
  month        = {01},
  number       = {3},
  publisher    = {American Physical Society},
  series       = {Physical Review B},
  title        = {Phenomenological position and energy resolving Lindblad approach to quantum kinetics},
  url          = {http://dx.doi.org/10.1103/PhysRevB.97.035432},
  volume       = {97},
  year         = {2018},
}