偶极相互作用对自旋轨道耦合自旋-1凝聚体中磁畴分布的影响

doi:10.19596/j.cnki.1001-246x.8203

计算物理 ›› 2021, Vol. 38 ›› Issue (1): 120-126.DOI: 10.19596/j.cnki.1001-246x.8203

• 研究论文 • 上一篇

偶极相互作用对自旋轨道耦合自旋-1凝聚体中磁畴分布的影响

李玉山

菏泽学院物理与电子工程学院, 山东菏泽 274015

收稿日期:2020-02-14 修回日期:2020-06-27 出版日期:2021-01-25 发布日期:2021-01-25
作者简介:LI Yushan (1980-),male,PhD,associate professor,major in condensed matter physics,E-mail:lysh507@163.com
基金资助:
Supported by National Natural Science Foundation of China (11804085) and Natural Science Foundation of Shandong Province (ZR2017MEM012)

Influence of Dipolar Interaction on Domain Distribution in a Spin-Orbit Coupled f=1 Spinor Condensate

LI Yushan

School of Physics and Electronic Engineering, Heze University, Heze, Shandong 274015, China

Received:2020-02-14 Revised:2020-06-27 Online:2021-01-25 Published:2021-01-25
Supported by:
Supported by National Natural Science Foundation of China (11804085) and Natural Science Foundation of Shandong Province (ZR2017MEM012)

摘要/Abstract

摘要： 研究准一维简谐势阱中存在自旋轨道耦合（SOC）的自旋-1偶极玻色-爱因斯坦凝聚体，数值求解旋量Gross-Pitaevskii方程，给出磁畴的分布。计算结果表明：磁畴结构与偶极-偶极相互作用（DDIs）密切相关，随着自旋轨道耦合强度和磁化强度的增强，原来的空间对称分布被破坏，随之出现新的分布模式。

关键词: 畴结构, 偶极相互作用, 自旋轨道耦合, 旋量凝聚体

Abstract: A spin-1 dipolar Bose-Einstein condensate with spin-orbit coupling (SOC) in a quasi-one-dimensional harmonic trap is studied. We focus on ground state domain distribution calculated numerically with spinor Gross-Pitaevskii equation. It was found that the domain structures are greatly affected by dipole-dipole interactions (DDIs). Spatial symmetry is broken and transition behaviors of distribution pattern are shown as SOC strength and magnetization are increased.

Key words: domain structure, dipolar interaction, spin-orbit coupled, spinor condensate

中图分类号:

O414.2

李玉山. 偶极相互作用对自旋轨道耦合自旋-1凝聚体中磁畴分布的影响[J]. 计算物理, 2021, 38(1): 120-126.

LI Yushan. Influence of Dipolar Interaction on Domain Distribution in a Spin-Orbit Coupled f=1 Spinor Condensate[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 2021, 38(1): 120-126.

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偶极相互作用对自旋轨道耦合自旋-1凝聚体中磁畴分布的影响

Influence of Dipolar Interaction on Domain Distribution in a Spin-Orbit Coupled f=1 Spinor Condensate

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