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Journal
2012 | 10 | 2 | 335-341
Article title

Oscillations in a parametrically excited Bose-Einstein condensate in combined harmonic and optical lattice trap

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EN
Abstracts
EN
In this work, we study parametric excitations in an elongated cigar-shaped BEC in a combined harmonic trap and a time dependent optical lattice by using numerical techniques. We show that there exists a relative competition between the harmonic trap which tries to spatially localize the BEC and the time varying optical lattice which tries to delocalize the BEC. This competition gives rise to parametric excitations (oscillations of the BEC width). Regular oscillations disappear when one of the competing factors, i.e. the strength of harmonic trap or the strength of optical lattice, dominates. Parametric instabilities (chaotic dynamics) arise for large variations in the strength of the optical lattice.
Publisher

Journal
Year
Volume
10
Issue
2
Pages
335-341
Physical description
Dates
published
1 - 4 - 2012
online
31 - 3 - 2012
Contributors
  • Department of Physics and Astrophysics, University of Delhi, Delhi, 110007, India
  • Department of Physics, ARSD College, University of Delhi (South Campus), New Delhi, 110021, India, bhattach@arsd.du.ac.in
author
  • Department of Physics and Astrophysics, University of Delhi, Delhi, 110007, India
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.-psjd-doi-10_2478_s11534-012-0006-2
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