Beating stripe solitons arising from helicoidal spin-orbit coupling in Bose-Einstein condensates.

IF 2.4 3区 物理与天体物理 Q1 Mathematics
Cui-Cui Ding, Qin Zhou, B A Malomed
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引用次数: 0

Abstract

We demonstrate that the model of a spatially nonuniform two-component Bose-Einstein condensates (BEC) featuring the helicoidal spin-orbit coupling (SOC), gives rise to dark-bright soliton complexes characterized by spatiotemporal periodic oscillations in each component. These solitons are formed by the superposition of dark and bright ones, and exhibit a beating state over time and a striped state across space, earning them the designation of beating stripe solitons. Our analysis demonstrates that helicoidal SOC significantly affects the formation and dynamical properties of these solitons, also serving as the primary driver for spin oscillations. Through the nonlinear superposition of the beating stripe solitons, a range of intricate scenarios of the interaction between multiple solitons emerges, including head-on collisions, bound states, and parallel states.

玻色-爱因斯坦凝聚体中螺旋自旋-轨道耦合产生的跳动条纹孤子。
我们证明了具有螺旋自旋-轨道耦合(SOC)的空间非均匀双组分玻色-爱因斯坦凝聚(BEC)模型产生了以每个组分的时空周期振荡为特征的暗-亮孤子复合物。这些孤子是由暗孤子和亮孤子的叠加形成的,随着时间的推移呈现出跳动状态,在空间中呈现出条纹状态,因此它们被称为跳动条纹孤子。我们的分析表明,螺旋SOC显著影响这些孤子的形成和动力学性质,也成为自旋振荡的主要驱动因素。通过跳动条纹孤子的非线性叠加,出现了一系列复杂的多孤子相互作用场景,包括正面碰撞、束缚态和平行态。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Physical review. E
Physical review. E 物理-物理:流体与等离子体
CiteScore
4.60
自引率
16.70%
发文量
0
审稿时长
3.3 months
期刊介绍: Physical Review E (PRE), broad and interdisciplinary in scope, focuses on collective phenomena of many-body systems, with statistical physics and nonlinear dynamics as the central themes of the journal. Physical Review E publishes recent developments in biological and soft matter physics including granular materials, colloids, complex fluids, liquid crystals, and polymers. The journal covers fluid dynamics and plasma physics and includes sections on computational and interdisciplinary physics, for example, complex networks.
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