ENTROPIC UNCERTAINTY RELATIONS FOR A QUANTUM OSCILLATOR

Citation
V. Majernik et T. Opatrny, ENTROPIC UNCERTAINTY RELATIONS FOR A QUANTUM OSCILLATOR, Journal of physics. A, mathematical and general, 29(9), 1996, pp. 2187-2197
Citations number
25
Categorie Soggetti
Physics
ISSN journal
03054470
Volume
29
Issue
9
Year of publication
1996
Pages
2187 - 2197
Database
ISI
SICI code
0305-4470(1996)29:9<2187:EURFAQ>2.0.ZU;2-#
Abstract
We calculated the Shannon entropy of position and momentum for the sta tionary quantum states of the harmonic oscillator as a function of its energy and determined the corresponding entropic uncertainty relation s for them. We found an approximate phenomenological function for the dependence of position and momentum entropies on the large quantum num bers and the corresponding asymptotic entropy-energy relation for the stationary harmonic oscillator. We also studied the time evolution of the position and momentum entropies of the non-stationary harmonic osc illator for the coherent states, squeezed vacuum and Schrodinger cat s tates.