Nonlinear tunneling and chaos between two Bose-Einstein condensates trapped in time-dependent potential

Citation
By. Ou et al., Nonlinear tunneling and chaos between two Bose-Einstein condensates trapped in time-dependent potential, PHYS LETT A, 291(1), 2001, pp. 17-21
Citations number
42
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICS LETTERS A
ISSN journal
0375-9601 → ACNP
Volume
291
Issue
1
Year of publication
2001
Pages
17 - 21
Database
ISI
SICI code
0375-9601(20011126)291:1<17:NTACBT>2.0.ZU;2-F
Abstract
In this Letter, we discuss the macroscopic quantum self-trapping (MQST) and coherent atomic tunneling between two weakly coupled Bose-Einstein condens ates confined in a time-dependent double-well trap. It is shown that the no nlinear interaction and the time-periodic external field can dramatically a ffect the MQST, lead to the high-order Bloch harmonics of the population im balance, and periodic or chaotic behavior. We give out the onset point of c haos by Lyapunov exponent and the phase plots. It is found that the sudden change on the quasi-energy corresponds to the transition from libration to rotation. (C) 2001 Published by Elsevier Science B.V.