• About
  • Policies
  • What is openaccess
  • Library
  • Contact
Advanced search
      View Item 
      •   BUIR Home
      • Scholarly Publications
      • Faculty of Science
      • Department of Physics
      • View Item
      •   BUIR Home
      • Scholarly Publications
      • Faculty of Science
      • Department of Physics
      • View Item
      JavaScript is disabled for your browser. Some features of this site may not work without it.

      Bell solitons in ultra-cold atomic Fermi gas

      Thumbnail
      View / Download
      602.7 Kb
      Author
      Khan, A.
      Panigrahi P.K.
      Date
      2013
      Source Title
      Journal of Physics B: Atomic, Molecular and Optical Physics
      Print ISSN
      0953-4075
      Volume
      46
      Issue
      11
      Language
      English
      Type
      Article
      Item Usage Stats
      119
      views
      82
      downloads
      Abstract
      We demonstrate the existence of supersonic bell solitons in the Bardeen-Cooper-Schrieffer-Bose-Einstein condensate crossover regime. Starting from the extended Thomas-Fermi density functional theory of superfluid order parameter, a density transformation is used to map the hydrodynamic mean field equation to a Lienard-type equation. As a result, bell solitons are obtained as exact solutions, which is further verified by the numerical solution of the dynamical equation. The stability of the soliton is established and its behaviour in the entire crossover domain is obtained. It is found that, akin to the case of vortices, bell solitons yield highest contrast in the BEC regime. © 2013 IOP Publishing Ltd.
      Keywords
      Crossover regime
      Dynamical equation
      Exact solution
      Mean field equation
      Numerical solution
      Superfluid order parameter
      Thomas-Fermi
      Ultra-cold
      Bells
      Density functional theory
      Electron gas
      Fermions
      Statistical mechanics
      Solitons
      Permalink
      http://hdl.handle.net/11693/20932
      Published Version (Please cite this version)
      http://dx.doi.org/10.1088/0953-4075/46/11/115302
      Collections
      • Department of Physics 2299
      Show full item record

      Browse

      All of BUIRCommunities & CollectionsTitlesAuthorsAdvisorsBy Issue DateKeywordsTypeDepartmentsThis CollectionTitlesAuthorsAdvisorsBy Issue DateKeywordsTypeDepartments

      My Account

      Login

      Statistics

      View Usage StatisticsView Google Analytics Statistics

      Bilkent University

      If you have trouble accessing this page and need to request an alternate format, contact the site administrator. Phone: (312) 290 1771
      Copyright © Bilkent University - Library IT

      Contact Us | Send Feedback | Off-Campus Access | Admin | Privacy