Dynamic Critical Phenomena in Trapped Bose Gases

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

doi:10.1117/12.426688

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Dynamic Critical Phenomena in Trapped Bose Gases

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

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Abstract

Nonlinear dynamics of a trapped Bose-Einstein condensate, subject to the action of a resonant external field, is studied. This field produces a spatio-temporal modulation of the trapping potential with the frequency close to the transition frequency between the ground state and a higher energy level. The evolution equations of fractional populations display a kind of critical phenomena at a critical line on the manifold of the system parameters. It is demonstrated that there exists a direct analogy between dynamical instability at this line and critical phenomena at a critical line of a related averaged system.

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V. I. Yukalov, E. P. Yukalova, V. S. Bagnato. 2001-08-30. Dynamic Critical Phenomena in Trapped Bose Gases. https://doi.org/10.1117/12.426688

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