Spin dynamics of quantum and classical Heisenberg dimers

Authors
Mentrup, D Schnack, J Luban, M
Citation
D. Mentrup et al., Spin dynamics of quantum and classical Heisenberg dimers, PHYSICA A, 272(1-2), 1999, pp. 153-161
Citations number
20
Categorie Soggetti
Physics
Journal title
PHYSICA A
ISSN journal
03784371 → ACNP
Volume
272
Issue
1-2
Year of publication
1999
Pages
153 - 161
Database
ISI
SICI code
0378-4371(19991001)272:1-2<153:SDOQAC>2.0.ZU;2-Y
Abstract
Analytical solutions for the time-dependent autocorrelation function of the classical and quantum mechanical spin dimer with arbitrary spin are presen ted and compared. For large spin quantum numbers or high temperature the cl assical and the quantum dimer become more and more similar, yet with the ma jor difference that the quantum autocorrelation function is periodic in tim e whereas the classical is not. (C) 1999 Elsevier Science B.V. All rights r eserved.