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We present vortex solutions for the homogeneous two-dimensional Bose-Einstein condensate featuring dipolar atomic interactions, mapped out as a function of the dipolar interaction strength (relative to the contact interactions) and…

量子气体 · 物理学 2014-11-19 B. C. Mulkerin , D. H. J. O'Dell , A. M. Martin , N. G. Parker

We have performed numerical analysis of the two-dimensional (2D) soliton solutions in Bose-Einstein condensates with nonlocal dipole-dipole interactions. For the modified 2D Gross-Pitaevski equation with nonlocal and attractive local terms,…

斑图形成与孤子 · 物理学 2015-06-26 V. M. Lashkin

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…

The dynamical stability of dark solitons in dipolar Bose-Einstein condensates is studied. For standard short-range interacting condensates dark solitons are unstable against transverse excitations in two and three dimensions. On the…

其他凝聚态物理 · 物理学 2009-11-13 R. Nath , P. Pedri , L. Santos

By numerical simulation and variational analysis of the Gross-Pitaevskii equation we study the localization, with an exponential tail, of a dipolar Bose-Einstein condensate (DBEC) of $^{52}$Cr atoms in a three-dimensional bichromatic…

量子气体 · 物理学 2015-05-19 P. Muruganandam , R. Kishor Kumar , S. K. Adhikari

The behaviour of a harmonically trapped dipolar Bose-Einstein condensate with its dipole moments rotating at angular frequencies lower than the transverse harmonic trapping frequency is explored in the co-rotating frame. We obtain…

Stabilizing vortex solitons with high values of the topological charge, S, is a challenging issue in optics, studies of Bose-Einstein condensates (BECs) and other fields. To develop a new approach to the solution of this problem, we…

量子气体 · 物理学 2017-11-22 Chunqing Huang , Lin Lyu , Hao Huang , Zhaopin Chen , Shenhe Fu , Haishu Tan , Boris A. Malomed , Yongyao Li

In the framework of the Gross-Pitaevskii equation, we study the formation and stability of effectively two-dimensional solitons in dipolar Bose-Einstein condensates (BECs), with dipole moments polarized at an arbitrary angle $\theta$…

斑图形成与孤子 · 物理学 2017-11-08 Xing-You Chen , You-Lin Chuang , Chun-Yan Lin , Chien-Ming Wu , Yongyao Li , Boris A. Malomed , Ray-Kuang Lee

We study the statics and dynamics of a binary dipolar Bose-Einstein condensate soliton for repulsive inter- and intraspecies contact interactions with the two components subject to different spatial symmetries $-$ distinct…

量子气体 · 物理学 2015-06-18 S. K. Adhikari , Luis E. Young-S

We study the influence of dipole-dipole interaction on the formation of vortices in a rotating dipolar Bose-Einstein condensate (BEC) of $^{52}$Cr and $^{164}$Dy atoms in quasi two-dimensional geometry. By numerically solving the…

量子气体 · 物理学 2012-10-02 R. Kishor Kumar , P. Muruganandam

The existence and stability of solitons in Bose-Einstein condensates with attractive inter-atomic interactions, described by the Gross-Pitaevskii equation with a three-dimensional (3D) periodic potential, are investigated in a systematic…

斑图形成与孤子 · 物理学 2009-11-11 D. Mihalache , D. Mazilu , F. Lederer , B. A. Malomed , L. -C. Crasovan , Y. V. Kartashov , L. Torner

We propose an experimentally relevant scheme to create stable solitons in a three-dimensional Bose-Einstein condensate confined by a one-dimensional optical lattice, using temporal modulation of the scattering length (through ac magnetic…

量子物理 · 物理学 2007-05-23 M. Trippenbach , M. Matuszewski , B. A. Malomed

We consider a dipolar Bose-Einstein condensate trapped in an array of two-well systems with an arbitrary orientations of the dipoles relative to the system's axis. The system can be built as a chain of local traps sliced into two parallel…

量子气体 · 物理学 2017-04-05 Zhiwei Fan , Yuhan Shi , Yan Liu , Wei Pang , Yongyao Li , Boris A. Malomed

We predict the existence of stable fundamental and vortical bright solitons in dipolar Bose-Einstein condensates (BECs) with repulsive dipole-dipole interactions (DDI). The condensate is trapped in the 2D plane with the help of the…

量子气体 · 物理学 2013-08-26 R. Kishor Kumar , P. Muruganandam , B. A. Malomed

We study the magnetic soliton dynamics of spinor Bose-Einstein condensates in an optical lattice which results in an effective Hamiltonian of anisotropic pseudospin chain. A modified Landau-Lifshitz equation is derived and exact magnetic…

其他凝聚态物理 · 物理学 2009-11-11 Z. D. Li , P. B. He , L. Li , J. Q. Liang , W. M. Liu

We present spatially localized nonrotating and rotating (azimuthon) multisolitons in the two-dimensional (2D) ("pancake-shaped configuration") Bose-Einstein condensate (BEC) with attractive interaction. By means of a linear stability…

斑图形成与孤子 · 物理学 2009-11-13 Volodymyr M. Lashkin

We study the conservative dynamics and stationary configurations of a vortex-antivortex pair in a harmonically trapped two-dimensional Bose-Einstein condensate. We establish the conceptual framework for understanding the stationary states…

其他凝聚态物理 · 物理学 2009-06-10 Weibin Li , Masudul Haque , Stavros Komineas

Symbiotic solitons (SS) and quantum droplets (QD) are self-trapped localized modes emerging in binary Bose-gas mixtures with intra-component repulsion and inter-component attraction. We have shown that two-dimensional SS can be stabilized…

量子气体 · 物理学 2023-11-01 S. M. Al-Marzoug , B. B. Baizakov , H. Bahlouli

We demonstrate robust, stable, mobile, quasi-one-dimensional, dark-in-bright dipolar Bose-Einstein condensate (BEC) soliton with a notch in the central plane formed due to dipolar interaction for repulsive contact interaction. At medium…

量子气体 · 物理学 2015-06-19 S K Adhikari

We report the numerical realization and demonstration of robustness of certain 2-component structures in Bose-Einstein Condensates in 2 and 3 spatial dimensions with non-trivial topological charge in one of the components. In particular, we…

斑图形成与孤子 · 物理学 2015-05-18 K. J. H. Law , P. G. Kevrekidis , Laurette S. Tuckerman