Article ID Journal Published Year Pages File Type
1862319 Physics Letters A 2007 5 Pages PDF
Abstract

We consider the generation of longitudinal phonons in an elongated Bose-condensed gas at zero temperature due to parametric resonance as a result of the modulation of the transverse trap frequency. The nonlinear temporal evolution with account of the phonon–phonon interaction leads self-consistently to the formation of the stationary state with the macroscopic occupation of a single phonon quantum state.

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Related Topics
Physical Sciences and Engineering Physics and Astronomy Physics and Astronomy (General)
Preview
Condensation of phonons in an ultracold Bose gas
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