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      Bistable behavior of a two-mode Bose-Einstein condensate in an optical cavity

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      Author(s)
      Safaei, S.
      Mustecaplioglu, Ö. E.
      Tanatar, Bilal
      Date
      2013-01-11
      Source Title
      Laser physics
      Print ISSN
      1054-660X
      Electronic ISSN
      1555-6611
      Publisher
      IOP Institute of Physics Publishing
      Volume
      23
      Issue
      3
      Pages
      035501-1 - 035501-6
      Language
      English
      Type
      Article
      Item Usage Stats
      228
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      150
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      Abstract
      We consider a two-component Bose-Einstein condensate in a one-dimensional optical cavity. Specifically, the condensate atoms are taken to be in two degenerate modes due to their internal hyperfine spin degrees of freedom and they are coupled to the cavity field and an external transverse laser field in a Raman scheme. A parallel laser also excites the cavity mode. When the pump laser is far detuned from its resonance atomic transition frequency, an effective nonlinear optical model of the cavity-condensate system is developed under the discrete mode approximation (DMA), while matter-field coupling has been considered beyond the rotating wave approximation. By analytical and numerical solutions of the nonlinear dynamical equations, we examine the mean cavity field and population difference (magnetization) of the condensate modes. The stationary solutions of both the mean cavity field and normalized magnetization demonstrate bistable behavior under certain conditions for the laser pump intensity and matter-field coupling strength.
      Keywords
      Localization
      Superfluid
      Systems
      Lattice
      Permalink
      http://hdl.handle.net/11693/13614
      Published Version (Please cite this version)
      https://doi.org/10.1088/1054-660X/23/3/035501
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      • Department of Physics 2550
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