Time-dependent variational approach to Bose-Einstein condensation

Year: 2000

Authors: Salasnich L.

Autors Affiliation: Univ Milan, Ist Nazl Fis Mat, Unita Milano, Dipartimento Fis, I-20133 Milan, Italy

Abstract: We discuss the mean-held approximation far a trapped weakly-interacting Bose-Einstein condensate (BEC) and its connection with the exact many-body problem by deriving the Gross-Pitaevskii action of the condensate. The mechanics of the BEC in a harmonic potential is studied by using a variational approach with time-dependent Gaussian trial wave-functions. In particular, we analyze the static configurations, the stability and the collective oscillations for both ground-state and vortices.

Journal/Review: INTERNATIONAL JOURNAL OF MODERN PHYSICS B

Volume: 14 (1)      Pages from: 1  to: 11

KeyWords: Bose-Einstein codensation
DOI: 10.1142/S0217979200000029

Citations: 41
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