Coupled spin-boson systems far from equilibrium
Abstract
Nonequilibrium quantum dynamics of a system comprising a (pseudo) spin-1/2 object coupled to a boson degree of freedom is studied. It is shown that the time evolution of the system is described by a set of elementary scattering processes. Through these processes the system approaches an equilibrium in which the spin is in a mixed state that on average maximizes its entropy. However, the irregular behavior of the system is unrelated to {open_quote}{open_quote}quantum chaos{close_quote}{close_quote} as the Hamiltonian is integrable. {copyright} {ital 1996 The American Physical Society.}
- Authors:
-
- Department of Physics, Stanford University, Stanford, California 94305 (United States)
- Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
- Center for Advanced Studies, University of New Mexico, Albuquerque, New Mexico 87131 (United States)
- Publication Date:
- OSTI Identifier:
- 389351
- Resource Type:
- Journal Article
- Journal Name:
- Physical Review, B: Condensed Matter
- Additional Journal Information:
- Journal Volume: 54; Journal Issue: 18; Other Information: PBD: Nov 1996
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 66 PHYSICS; QUASI PARTICLES; MATHEMATICAL MODELS; BOSONS; DEGREES OF FREEDOM; COUPLING; ENTROPY; HAMILTONIANS; POLARONS; SPIN SYSTEMS; NONEQUILIBRIUM
Citation Formats
Salkola, M I, Bishop, A R, Kenkre, V M, and Raghavan, S. Coupled spin-boson systems far from equilibrium. United States: N. p., 1996.
Web. doi:10.1103/PhysRevB.54.R12645.
Salkola, M I, Bishop, A R, Kenkre, V M, & Raghavan, S. Coupled spin-boson systems far from equilibrium. United States. https://doi.org/10.1103/PhysRevB.54.R12645
Salkola, M I, Bishop, A R, Kenkre, V M, and Raghavan, S. 1996.
"Coupled spin-boson systems far from equilibrium". United States. https://doi.org/10.1103/PhysRevB.54.R12645.
@article{osti_389351,
title = {Coupled spin-boson systems far from equilibrium},
author = {Salkola, M I and Bishop, A R and Kenkre, V M and Raghavan, S},
abstractNote = {Nonequilibrium quantum dynamics of a system comprising a (pseudo) spin-1/2 object coupled to a boson degree of freedom is studied. It is shown that the time evolution of the system is described by a set of elementary scattering processes. Through these processes the system approaches an equilibrium in which the spin is in a mixed state that on average maximizes its entropy. However, the irregular behavior of the system is unrelated to {open_quote}{open_quote}quantum chaos{close_quote}{close_quote} as the Hamiltonian is integrable. {copyright} {ital 1996 The American Physical Society.}},
doi = {10.1103/PhysRevB.54.R12645},
url = {https://www.osti.gov/biblio/389351},
journal = {Physical Review, B: Condensed Matter},
number = 18,
volume = 54,
place = {United States},
year = {Fri Nov 01 00:00:00 EST 1996},
month = {Fri Nov 01 00:00:00 EST 1996}
}
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