Stable 2D skyrmion and half-skyrmion in three-component Bose-Einstein condensates

被引：2

作者：

Liu, Yong-Kai ^{[1
]}

Yang, Shi-Jie ^{[2
]}

机构：

[1] Shanxi Normal Univ, Sch Phys & Informat Engn, Linfen 041004, Peoples R China

[2] Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China

来源：

PHYSICS LETTERS A | 2017年 / 381卷 / 34期

关键词：

Bose-Einstein condensates; The spin-orbit coupling; Three-component Bose-Einstein; condensates; 2D skyrmion; Half-skyrmion;

D O I：

10.1016/j.physleta.2017.06.045

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Skyrmion spin textures were experimentally created in an antiferromagnetic spin-1 Bose-Einstein condensate by Choi et al. However, the stability of 2D skyrmion excitations is still controversial. Theoretical calculations show that 2D skyrmion excitations are energetically unstable. However, we find that the 2D skyrmion as well as the half-slcyrmion can be naturally generated from a vortex-free Gaussian wave packet by incorporating spin-orbit coupling into three-component Bose-Einstein condensates. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：2809 / 2812

页数：4

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