• Matter-wave bright solitons in effective bichromatic lattice potentials

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      https://www.ias.ac.in/article/fulltext/pram/081/02/0261-0274

    • Keywords

       

      Bose–Einstein condensate; optical lattices; inhomogeneous nonlinearity.

    • Abstract

       

      Matter-wave bright solitons in bichromatic lattice potentials are considered and their dynamics for different lattice environments are studied. Bichromatic potentials are created from superpositions of (i) two linear optical lattices and (ii) a linear and a nonlinear optical lattice. Effective potentials are found for the solitons in both bichromatic lattices and a comparative study is done on the dynamics of solitons with respect to the effective potentials. The effects of dispersion on solitons in bichromatic lattices are studied and it is found that the dispersive spreading can be minimized by appropriate combinations of lattice and interaction parameters. Stability of nondispersive matter-wave solitons is checked from phase portrait analysis.

    • Author Affiliations

       

      Golam Ali Sekh1

      1. Scientific Computing Laboratory, Institute of Physics Belgrade, Pregrevica 118, 11080 Belgrade, Serbia
    • Dates

       
  • Pramana – Journal of Physics | News

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