ON THE PHASE-SPACE DESCRIPTION OF QUANTUM NONLINEAR DYNAMICS

Authors
ATAKISHIYEV NM CHUMAKOV SM RIVERA AL WOLF KB
Citation
Nm. Atakishiyev et al., ON THE PHASE-SPACE DESCRIPTION OF QUANTUM NONLINEAR DYNAMICS, Physics letters. A, 215(3-4), 1996, pp. 128-134
Citations number
19
Categorie Soggetti
Physics
Journal title
Physics letters. A → ACNP
ISSN journal
03759601
Volume
215
Issue
3-4
Year of publication
1996
Pages
128 - 134
Database
ISI
SICI code
0375-9601(1996)215:3-4<128:OTPDOQ>2.0.ZU;2-R
Abstract
We analyze the difference between classical dynamics (geometric optics ) and quantum dynamics (wave optics) by calculating the time history o f the Wigner function for the simplest nonlinear Hamiltonians which ar e fourth-degree polynomials in p and q. It is shown that the moments o f the Wigner function carry important information about the state of a system and can be used to distinguish between quasiclassical and quan tum evolution.