Dynamics of quasi-one-dimensional bright and vortex solitons of a dipolar Bose–Einstein condensate with repulsive atomic interaction
Luis E. Young-S.Instituto de Física Teórica, UNESP—Universidade Estadual Paulista, 01.140-070 São Paulo, São Paulo, BrazilPaulsamy MuruganandamInstituto de Física Teórica, UNESP—Universidade Estadual Paulista, 01.140-070 São Paulo, São Paulo, BrazilSadhan K. AdhikariInstituto de Física Teórica, UNESP—Universidade Estadual Paulista, 01.140-070 São Paulo, São Paulo, Brazil
2011en
ABI
Аннотация
Abstract. By numerical and variational analysis of the three-dimensional Gross-Pitaevskii equation we study the formation and dynamics of bright and vortex-bright solitons in a cigar-shaped dipolar Bose-Einstein condensate for large repulsive atomic interactions. Phase diagram showing the region of stability of the solitons is obtained. We also study the dynamics of breathing oscillation of the solitons as well as the collision dynamics of two solitons at large velocities. Two solitons placed side-by-side at rest coalesce to form a stable bound soliton molecule due to dipolar attraction. PACS numbers: 03.75.Lm,05.45.Yv,05.30.Jp
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