QUANTUM SUPPRESSION OF CHAOS IN THE SPIN-BOSON MODEL - COMMENT

Authors
BONCI L RONCAGLIA R WEST BJ GRIGOLINI P
Citation
L. Bonci et al., QUANTUM SUPPRESSION OF CHAOS IN THE SPIN-BOSON MODEL - COMMENT, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 56(2), 1997, pp. 2325-2328
Citations number
9
Categorie Soggetti
Physycs, Mathematical","Phsycs, Fluid & Plasmas
Journal title
Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics → ACNP
ISSN journal
1063651X
Volume
56
Issue
2
Year of publication
1997
Pages
2325 - 2328
Database
ISI
SICI code
1063-651X(1997)56:2<2325:QSOCIT>2.0.ZU;2-T
Abstract
We independently examine the case of a spin-j particle interacting wit h a boson field studied by Finney and Gea-Banacloche. We concentrate o n their conclusion that in the case j=1/2 the correspondence between t he quantum and the semiclassical case is damaged to the point that the increase of entropy and quantum uncertainty for regular motion exceed s that for the chaotic case. We demonstrate by direct calculation that this conclusion is the result of mistakenly identifying a regular evo lution of the spin-boson system as being chaotic.