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2012 | 10 | 2 | 335-341
Tytuł artykułu

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

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
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.
Wydawca

Czasopismo
Rocznik
Tom
10
Numer
2
Strony
335-341
Opis fizyczny
Daty
wydano
2012-04-01
online
2012-03-31
Twórcy
  • 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
autor
  • Department of Physics and Astrophysics, University of Delhi, Delhi, 110007, India
Bibliografia
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Typ dokumentu
Bibliografia
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Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_2478_s11534-012-0006-2
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