We investigate the stability of bright solitons in Bose-Einstein condensates by including a feeding term and a loss one in the Gross-Pitaevskii equation. Based on the direct approach of perturbation theory for the nonlinear Schrodinger equation, we give the explicit dependence of the height and other related quantities of bright solitons on the feeding and loss term. It is found that the three-body recombination loss plays a crucial role in stabilizing bright solitons.
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Kyung Hee Univ, Dept Phys, Seoul 130701, South Korea
Kyung Hee Univ, Res Inst Basic Sci, Seoul 130701, South KoreaGovt Coll Women Autonomous, Dept Phys, Ctr Nonlinear Sci, Kumbakonam 612001, India
Shin, H. J.
Radha, R.
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Govt Coll Women Autonomous, Dept Phys, Ctr Nonlinear Sci, Kumbakonam 612001, IndiaGovt Coll Women Autonomous, Dept Phys, Ctr Nonlinear Sci, Kumbakonam 612001, India
Radha, R.
Kumar, V. Ramesh
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Govt Coll Women Autonomous, Dept Phys, Ctr Nonlinear Sci, Kumbakonam 612001, India
Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R ChinaGovt Coll Women Autonomous, Dept Phys, Ctr Nonlinear Sci, Kumbakonam 612001, India