THE EHRENFEST MODEL - A PATH-INTEGRAL FOR SPIN

Authors
LEMMENS LF
Citation
Lf. Lemmens, THE EHRENFEST MODEL - A PATH-INTEGRAL FOR SPIN, Physics letters. A, 222(6), 1996, pp. 419-423
Citations number
31
Categorie Soggetti
Physics
Journal title
Physics letters. A → ACNP
ISSN journal
03759601
Volume
222
Issue
6
Year of publication
1996
Pages
419 - 423
Database
ISI
SICI code
0375-9601(1996)222:6<419:TEM-AP>2.0.ZU;2-F
Abstract
The Ehrenfest model, formulated as a continuous time Markov chain, is a representation of a spin with length j in a magnetic held. The equiv alence is shown by the introduction of a Feynman-Kac functional on the sample paths of the Markov chain. A transformation is used to calcula te the functional leading to the solution of a path-integral for spin without reference to coherent states.