Exact soliton-on-plane-wave solutions for two-component Bose-Einstein condensates

Lu Li*, Boris A. Malomed, Dumitru Mihalache, W. M. Liu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

77 Scopus citations

Abstract

By means of the Darboux transformation, we obtain analytical solutions for a soliton set on top of a plane-wave background in coupled Gross-Pitaevskii equations describing a binary Bose-Einstein condensate. We consider basic properties of the solutions with and without the cross interaction [cross phase modulation (XPM)] between the two components of the background. In the absence of the XPM, this solutions maintain properties of one-component condensates, such as the modulation instability (MI); in the presence of the cross interaction, the solutions exhibit different properties, such as restriction of the MI and soliton splitting.

Original languageEnglish
Article number066610
JournalPhysical Review E - Statistical, Nonlinear, and Soft Matter Physics
Volume73
Issue number6
DOIs
StatePublished - 2006

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