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Author Salkola, M. I. ♦ Bishop, A. R. ♦ Kenkre, V. M. ♦ Raghavan, S.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PHYSICS ♦ QUASI PARTICLES ♦ MATHEMATICAL MODELS ♦ BOSONS ♦ DEGREES OF FREEDOM ♦ COUPLING ♦ ENTROPY ♦ HAMILTONIANS ♦ POLARONS ♦ SPIN SYSTEMS ♦ NONEQUILIBRIUM
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.}
ISSN 01631829
Educational Use Research
Learning Resource Type Article
Publisher Date 1996-11-01
Publisher Place United States
Journal Physical Review, B: Condensed Matter
Volume Number 54
Issue Number 18


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