Please use this identifier to cite or link to this item:
Title: Finite Temperature Effects in the NonintegrableSU(3) Lipkin Model
Authors: Terra, M. O. 
Nemes, M. C. 
Providência, C. da 
Providência, J. da 
Issue Date: 1998
Citation: Annals of Physics. 262:1 (1998) 1-46
Abstract: In the present work we use nonrelativistic many body physics techniques to generalize the classical limit of quantum systems in such a way as to incorporate statistical mixtures. Finite temperature effects are thus incorporated in a natural way. We give a detailed account of the thermodynamics of theSU(3) Lipkin model and then derive the classical thermal (chaotic) dynamics of the system. The most remarkable features of our analysis are twofold: firstly the appearance of a new degree of freedom essentially connected to thermal effects, i.e., for high enough temperatures. Secondly we give a quantitative characterization of the temperature effects on the chaotic volume of the system. Thermal effects are shown to be responsible for novel nonlinear contributions to the dynamics and to consistently counterbalance the inter- action part of the dynamics. This is the case in the context both of thermodynamics and of the thermal dynamics and we believe it to be true in general.
DOI: 10.1006/aphy.1997.5742
Rights: openAccess
Appears in Collections:FCTUC Física - Artigos em Revistas Internacionais

Files in This Item:
File Description SizeFormat
filed37c339c18ac4ec4a29c70818bcef86e.pdf761.4 kBAdobe PDFView/Open
Show full item record

Page view(s) 50

checked on Nov 26, 2020

Download(s) 50

checked on Nov 26, 2020

Google ScholarTM




Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.