DECAY AND RECURRENCES OF WAVE-PACKETS IN NONLINEAR QUANTUM-SYSTEMS

Authors
STUCHEBRUKHOV AA MARCUS RA
Citation
Aa. Stuchebrukhov et Ra. Marcus, DECAY AND RECURRENCES OF WAVE-PACKETS IN NONLINEAR QUANTUM-SYSTEMS, Journal of physical chemistry, 98(13), 1994, pp. 3285-3289
Citations number
23
Categorie Soggetti
Chemistry Physical
Journal title
Journal of physical chemistry → ACNP
ISSN journal
00223654
Volume
98
Issue
13
Year of publication
1994
Pages
3285 - 3289
Database
ISI
SICI code
0022-3654(1994)98:13<3285:DAROWI>2.0.ZU;2-T
Abstract
A simple and analytical model of quantum recurrences in wave packet dy namics of nonlinear vibrational systems is presented. It is shown that in addition to ''normal' rephasing time tau(R) the width of the packe t experiences very strong recurrences at tau(R)/2. In a quasiclassical limit, which can be studied explicitly in this model, the recurrences disappear and the decay becomes irreversible. Recent femtosecond expe rimental results of Zewail and co-workers are discussed in the framewo rk of this analytical model.