DYNAMICS OF THE SPIN-BOSON MODEL IN THE ADIABATIC APPROXIMATION

Authors
KOSTIC D IVIC Z KAPOR D TANCIC A
Citation
D. Kostic et al., DYNAMICS OF THE SPIN-BOSON MODEL IN THE ADIABATIC APPROXIMATION, Journal of physics. Condensed matter, 6(3), 1994, pp. 729-740
Citations number
44
Categorie Soggetti
Physics, Condensed Matter
Journal title
Journal of physics. Condensed matter → ACNP
ISSN journal
09538984
Volume
6
Issue
3
Year of publication
1994
Pages
729 - 740
Database
ISI
SICI code
0953-8984(1994)6:3<729:DOTSMI>2.0.ZU;2-7
Abstract
We study the dynamics of the spin-boson model using a simple mean-fiel d-type approximation which treats phonons classically. This simple app roximation allows us to cover the whole range of system parameters and to determine boundaries between regimes with different behaviours. Th e validity of the model is tested by its ability to recover most of th e previous results. The results are also compared with the results of some more sophisticated variational approaches.