2003/05/21 by V. I. Yukalov, E. P. Yukalova, V. S. Bagnato · 1 citation
Physics and Astronomy · #cond-mat
published as Laser Phys. 13 (2003) 551-561 · 20 pages, Latex, no figures
arxiv created 2003/05/21 · arxiv updated 2009/11/30
The resonant formation of nonlinear coherent modes in trapped Bose-Einstein condensates is studied. These modes represent nonground-state Bose condensates. The methods of describing the spectrum of the nonlinear modes are discussed. The latter can be created by modulating the trapping potential with a frequency tuned close to the transition frequency between the two chosen modes. The requirement that the transition amplitudes be smaller than the transition frequency implies a constraint on the number of particles that can be transferred to an excited mode. The resonant Bose condensate serves as a collective analog of a single resonant atom. Such a condensate, displaying the coherent resonance, possesses several interesting features, among which are: mode locking, critical dynamics, interference patterns, interference current, atomic squeezing, and multiparticle entanglement.