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It is known that the interplay of the spin-orbit-coupling (SOC) and mean-field self-attraction creates stable two-dimensional (2D) solitons (ground states) in spinor Bose-Einstein condensates. However, SOC destroys the system's Galilean…

量子气体 · 物理学 2022-02-23 Hidetsugu Sakaguchi , Fumihide Hirano , Boris A. Malomed

We describe a controllable and precise laser tweezers for Bose-Einstein condensates of ultracold atomic gases. In our configuration, a laser beam is used to locally modify the sign of the scattering length in the vicinity of a trapped BEC.…

其他凝聚态物理 · 物理学 2009-11-13 Alicia V. Carpentier , Juan Belmonte-Beitia , Humberto Michinel , Victor M. Perez-Garcia

It was recently found that the spin-orbit (SO) coupling can help to create stable matter-wave solitons in spinor Bose-Einstein condensates in the two-dimensional (2D) free space. Being induced by external laser illumination, the effective…

斑图形成与孤子 · 物理学 2019-03-15 Yongyao Li , Xiliang Zhang , Rongxuan Zhong , Zhihuan Luo , Bin Liu , Chunqing Huang , Wei Pang , Boris A. Malomed

In this paper we study the scattering of solitons in a binary Bose-Einstein Condensate (BEC) including SO- and Rabi-couplings. To this end, we derive a reduced ODE model in view to provide a variational description of the collisional…

量子气体 · 物理学 2018-05-10 Rafael M. P. Teixeira , Wesley B. Cardoso

We study the formation of solitons in a uniform quasi-two-dimensional (quasi-2D) spin-orbit (SO) coupled self-repulsive binary dipolar and nondipolar Bose-Einstein condensate (BEC) using the mean-field Gross-Pitaevskii equation. For a weak…

量子气体 · 物理学 2026-02-05 S. K. Adhikari

We experimentally generate sine-Gordon-like solitons in a spin-1 spinor Bose-Einstein condensate (BEC) utilizing a robust and reproducible local phase-imprinting scheme. We find that the soliton velocity can be tuned by the effective…

We study the dynamics of nonlinear localized excitations (solitons) in two-dimensional (2D) Bose-Einstein condensates (BECs) with repulsive interactions, loaded into an optical lattice (OL), which is combined with an external parabolic…

软凝聚态物质 · 物理学 2009-11-10 H. Sakaguchi , B. A. Malomed

Recent conjectures that there are mesoscopically ``large'' extra dimensions, through which gravity propagates have interesting implications for much of physics. The scenario implies gross departures from Newton's law of gravity at small…

天体物理学 · 物理学 2009-11-07 Steinn Sigurdsson

We study two-dimensional (2D) matter-wave solitons in spinor Bose-Einstein condensates (BECs) under the action of the spin-orbit coupling (SOC) and opposite signs of the self- and cross-interactions. Stable 2D two-component solitons of the…

量子气体 · 物理学 2017-12-01 Yongyao Li , Zhihuan Luo , Yan Liu , Zhaopin Chen , Chunqing Huang , Shenhe Fu , Haishu Tan , Boris A. Malomed

We consider an attractive quasi-one dimensional spin-orbit coupled Bose-Einstein condensate (SOC BEC) confined in a periodic potential produced by the combination of linear and nonlinear optical lattices, and study the effects of squeezing…

量子气体 · 物理学 2023-03-09 Golam Ali Sekh , Benoy Talukdar

We study the formation of solitons in a uniform quasi-one-dimensional (quasi-1D) spin-orbit (SO) coupled self-repulsive pseudo spin-half and spin-one dipolar Bose-Einstein condensates (BEC), using the mean-field Gross-Pitaevskii equation.…

量子气体 · 物理学 2026-03-20 S. K. Adhikari

Solitons play a fundamental role in dynamics of nonlinear excitations. Here we explore the motion of solitons in one-dimensional uniform Bose-Einstein condensates subjected to a spin-orbit coupling (SOC). We demonstrate that the spin…

量子气体 · 物理学 2016-12-21 Lin Wen , Q. Sun , Yu Chen , Deng-Shan Wang , J. Hu , H. Chen , W. -M. Liu , G. Juzeliūnas , Boris A. Malomed , An-Chun Ji

The dynamics of a two-soliton molecule bouncing on the reflecting atomic mirror under the effect of gravity has been studied by analytical and numerical methods. The analytical description is based on the variational approximation. In…

量子气体 · 物理学 2019-12-20 Kh. P. Khamrakulov

Using a (1+2)-dimensional boson-vortex duality between non-linear electrodynamics and a two-component compressible Bose-Einstein condensate (BEC) with spin-orbit (SO) coupling, we obtain generalised versions of the hydrodynamic continuity…

量子气体 · 物理学 2017-09-13 L. A. Toikka

We study the spin squeezing in a spin-1/2 Bose-Einstein condensates (BEC) with Raman induced spin-orbit coupling (SOC). Under the condition of two-photon resonance and weak Raman coupling strength, the system possesses two degenerate ground…

量子气体 · 物理学 2020-08-26 Li Chen , Yunbo Zhang , Han Pu

We report on the existence and stability of freely moving solitons in a spatially inhomogeneous Bose- Einstein condensate with helicoidal spin-orbit (SO) coupling. In spite of the periodically varying parameters, the system allows for the…

斑图形成与孤子 · 物理学 2017-09-22 Yaroslav V. Kartashov , Vladimir V. Konotop

The evolution of atomic solitary waves in Bose-Einstein condensate (BEC) under adiabatic changes of the atomic scattering length is investigated. The variations of amplitude, width, and velocity of soliton are found for both spatial and…

凝聚态物理 · 物理学 2009-11-10 F. Kh. Abdullaev , Mario Salerno

We investigate magnetic solitons in an immiscible binary Bose-Einstein condensate (BEC), where the intraspecies interactions are slightly weaker than the interspecies interactions. While their density and phase profiles are analogous to…

量子气体 · 物理学 2020-11-24 Xiao Chai , Li You , Chandra Raman

We demonstrate the existence of one and two-dimensional bright solitons in the Bose-Einstein condensate with repulsive dipole-dipole interactions induced by a combination of dc and ac polarizing fields, oriented perpendicular to the plane…

斑图形成与孤子 · 物理学 2015-06-17 Yongyao Li , Jingfeng Liu , Wei Pang , Boris A. Malomed

Spin-orbit coupling (SOC), the intrinsic interaction between a particle spin and its motion, is responsible for various important phenomena, ranging from atomic fine structure to topological condensed matter physics. The recent experimental…

量子气体 · 物理学 2013-07-05 Yongping Zhang , Gang Chen , Chuanwei Zhang
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