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Title: 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:
 [1];  [2]; ;  [3]
  1. Department of Physics, Stanford University, Stanford, California 94305 (United States)
  2. Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
  3. 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}
}