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We suggest the possibility of observing and studying bright vortex solitons in attractive Bose-Einstein condensates in three dimensions with a radial trap. Such systems lie on the verge of critical stability and we discuss the conditions of…

软凝聚态物质 · 物理学 2009-11-10 Sadhan K. Adhikari

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…

量子气体 · 物理学 2015-05-27 Luis E. Young-S. , P. Muruganandam , S. K. Adhikari

We study the formation and dynamics of bright solitons in a quasi-one-dimensional reduced mean-field Gross-Pitaevskii equation of a dipolar Bose-Einstein condensate with repulsive short-range interactions. The study is carried out using a…

量子气体 · 物理学 2014-06-20 Emerson Chiquillo

We variationally determine the dynamics of bright soliton trains composed of harmonically trapped Bose-Einstein condensates with attractive interatomic interactions. In particular, we obtain the interaction potential between two solitons.…

凝聚态物理 · 物理学 2007-05-23 U. Al Khawaja , H. T. C. Stoof , R. G. Hulet , K. E. Strecker , G. B. Partridge

We study a two-dimensional spin-orbit-coupled dipolar Bose-Einstein condensate with repulsive contact interactions by both the variational method and the imaginary time evolution of the Gross-Pitaevskii equation. The dipoles are completely…

量子气体 · 物理学 2015-07-30 Yong Xu , Yongping Zhang , Chuanwei Zhang

We study the matter-wave solitons in Bose-Einstein condensate (BEC) trapped on a M\"{o}bius strip (MS), based on the respective Gross-Pitaevskii (GP) equation with the mean-field theory. In the linear regime, vortex states are characterized…

斑图形成与孤子 · 物理学 2025-02-14 Huan-Bo Luo , Guilong Li , Fu-Quan Dou , Bin Liu , Boris A. Malomed , Josep Batle , Yongyao Li

We study the dynamics of two gray solitons in a Bose-Einstein condensate confined by a toroidal trap with a tight confinement in the radial direction. Gross-Pitaevskii simulations show that solitons can be long living objects passing…

量子气体 · 物理学 2016-02-03 D. M. Jezek , P. Capuzzi , H. M. Cataldo

We introduce an effectively one-dimensional (1D) model of a bosonic gas of particles carrying collinear dipole moments which are induced by an external polarizing field with the strength periodically modulated along the coordinate, which…

量子气体 · 物理学 2015-06-18 F. Kh. Abdullaev , A. Gammal , B. A. Malomed , L. Tomio

We study the interaction of dark-bright solitons in two component Bose-Einstein condensates by suitably tailoring the trap potential, atomic scattering length and atom gain or loss. We show that the coupled Gross-Pitaevskii (GP) equation…

其他凝聚态物理 · 物理学 2009-06-25 S. Rajendran , P. Muruganandam , M. Lakshmanan

We demonstrate stable, robust, bright dipolar Bose-Einstein condensate (BEC) solitons, moving in a direction perpendicular to the polarization direction, formed due to dipolar interaction for repulsive contact interaction. At medium…

量子气体 · 物理学 2015-06-23 S. K. Adhikari

We study the formation of bright solitons in a Bose-Einstein condensate of $^7$Li atoms induced by a sudden change in the sign of the scattering length from positive to negative, as reported in a recent experiment (Nature {\bf 417}, 150…

统计力学 · 物理学 2009-11-10 L. Salasnich , A. Parola , L. Reatto

We study the vortex-bright solitons in a quasi-two-dimensional spin-orbit-coupled (SO-coupled) hyperfine spin-1 three-component Bose-Einstein condensate (BEC) using variational method and numerical solution of a mean-field model. The ground…

量子气体 · 物理学 2017-01-11 Sandeep Gautam , S. K. Adhikari

We present experimental results and a systematic theoretical analysis of dark-br ight soliton interactions and multiple-dark-bright soliton complexes in atomic t wo-component Bose-Einstein condensates. We study analytically the interactions…

By solving the three-dimensional Gross-Pitaevskii equation we generate two-dimensional axially-symmetric and anisotropic dipolar Bose-Einstein condensate bright solitons, for repulsive atomic interaction, stabilized by only a weak…

量子气体 · 物理学 2015-06-03 S. K. Adhikari , P. Muruganandam

The interaction between two bright solitons in a dipolar Bose-Einstein condensate (BEC) has been investigated aiming at finding the regimes when they form a stable bound state, known as soliton molecule. To study soliton interactions in BEC…

量子气体 · 物理学 2015-09-30 B. B. Baizakov , S. M. Al-Marzoug , H. Bahlouli

We study the stability, form and interaction of single and multiple dark solitons in quasi-one-dimensional dipolar Bose-Einstein condensates. The solitons are found numerically as stationary solutions in the moving frame of a non-local…

量子气体 · 物理学 2016-06-28 M. J. Edmonds , T. Bland , D. H. J. O'Dell , N. G. Parker

We demonstrate fast control of the interatomic interactions in a Bose-Einstein condensate by coherently coupling two atomic states with intra- and inter-state scattering lengths of opposite signs. We measure the elastic and inelastic…

量子气体 · 物理学 2022-09-27 J. Sanz , A. Frölian , C. S. Chisholm , C. R. Cabrera , L. Tarruell

We demonstrate stable and metastable vortex-bright solitons in a three-dimensional spin-orbit-coupled three-component hyperfine spin-1 Bose-Einstein condensate (BEC) using numerical solution and variational approximation of a mean-field…

量子气体 · 物理学 2019-08-20 Sandeep Gautam , S. K. Adhikari

We investigate the coherent collision of anisotropic quasi-two-dimensional bright solitons in dipolar Bose-Einstein condensates. Our analysis is based on the extended Gross-Pitaevskii equation, and we use the split-operator method for the…

量子气体 · 物理学 2012-11-14 Rüdiger Eichler , Damir Zajec , Patrick Köberle , Jörg Main , Günter Wunner

By effectively controlling the dipole-dipole interaction, we investigate the characteristics of the ground state of bright solitons in a spin-orbit coupled dipolar Bose-Einstein condensate. The dipolar atoms are trapped within a…

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