ON THE EQUIVALENCE OF SOME PROJECTION OPERATOR TECHNIQUES

Authors
Citation
J. Perina, ON THE EQUIVALENCE OF SOME PROJECTION OPERATOR TECHNIQUES, Physica. A, 214(2), 1995, pp. 309-318
Citations number
12
Categorie Soggetti
Physics
Journal title
ISSN journal
03784371
Volume
214
Issue
2
Year of publication
1995
Pages
309 - 318
Database
ISI
SICI code
0378-4371(1995)214:2<309:OTEOSP>2.0.ZU;2-F
Abstract
It is shown that equations of motion for mean values of operators deri ved from the time-convolution (time-convolutionless) generalized maste r equation for the density matrix and from the equations for operators from the Mori (Tokuyama-Mori) theory are the same, provided that proj ectors are suitably chosen. This is valid also for systems described b y time-dependent Hamiltonians, We can emphasize that the equivalence o f the corresponding equations remains valid when invoking approximatio ns.