DISSIPATIVE QUANTUM-SYSTEMS MODELED BY A 2-LEVEL-RESERVOIR COUPLING

Authors
CALDEIRA AO NETO AHC DECARVALHO TO
Citation
Ao. Caldeira et al., DISSIPATIVE QUANTUM-SYSTEMS MODELED BY A 2-LEVEL-RESERVOIR COUPLING, Physical review. B, Condensed matter, 48(18), 1993, pp. 13974-13976
Citations number
5
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
48
Issue
18
Year of publication
1993
Pages
13974 - 13976
Database
ISI
SICI code
0163-1829(1993)48:18<13974:DQMBA2>2.0.ZU;2-Z
Abstract
The coupling between a quantum dynamical system and a two-level-system reservoir is analyzed within the framework of the Feynman-Vernon theo ry. We stress the differences between this reservoir and the well-know n bath of oscillators and show that, in order to obtain the Langevin e quation for the system of interest in the high-temperature regime, we have to choose a spectral distribution function J(omega) that is finit e for w = 0.