Resonant Bose Condensate: Analog of Resonant Atom

V. I. Yukalov; E. P. Yukalova; V. S. Bagnato

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Resonant Bose Condensate: Analog of Resonant Atom

V. I. Yukalov·E. P. Yukalova·V. S. Bagnato

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Abstract

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.

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V. I. Yukalov, E. P. Yukalova, V. S. Bagnato. 2003-05-21. Resonant Bose Condensate: Analog of Resonant Atom. https://arxiv.org/abs/cond-mat/0305495

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