scholarly journals Topological excitations in rotating Bose-Einstein condensates with Rashba-Dresselhaus spin-orbit coupling in a two-dimensional optical lattice

2019 ◽  
Vol 134 (12) ◽  
Author(s):  
Hui Yang ◽  
Qingbo Wang ◽  
Ning Su ◽  
Linghua Wen
Keyword(s):  
Optical Lattice ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Two Dimensional ◽  
Topological Excitations ◽  
Bose Einstein

Manipulating Vortices in F=2 Bose-Einstein Condensates through Magnetic Field and Spin-Orbit Coupling

2021 ◽  
Author(s):  
Hao Zhu ◽  
Shou-Gen Yin ◽  
Wu-Ming Liu
Keyword(s):  
Magnetic Field ◽  
Phase Separation ◽  
Ground State ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Topological Excitations ◽  
Coupling Strengths ◽  
Bose Einstein ◽  
Particle Current

Abstract We investigate the vortex structures excited by Ioffe-Pritchard magnetic field and Dresselhaus-type spin-orbit coupling in F = 2 ferromagnetic Bose-Einstein condensates. In the weakly interatomic interacting regime, an external magnetic field can generate a polar-core vortex in which the canonical particle current is zero. With the combined effect of spin-orbit coupling and magnetic field, the ground state experiences a transition from polar-core vortex to Mermin-Ho vortex, in which the canonical particle current is anticlockwise. For fixed spin-orbit coupling strengths, the evolution of phase winding, magnetization and degree of phase separation with magnetic field are studied. Additionally, with further increasing spin-orbit coupling strength, the condensate exhibits symmetrical density domains separated by radial vortex arrays. Our work paves the way to explore exotic topological excitations in high-spin system.

scholarly journals Realization of two-dimensional spin-orbit coupling for Bose-Einstein condensates

Science ◽  
2016 ◽  
Vol 354 (6308) ◽  
pp. 83-88 ◽  
Author(s):  
Z. Wu ◽  
L. Zhang ◽  
W. Sun ◽  
X.-T. Xu ◽  
B.-Z. Wang ◽  
...  
Keyword(s):  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Two Dimensional ◽  
Bose Einstein

scholarly journals Two-dimensional composite solitons in Bose-Einstein condensates with spatially confined spin-orbit coupling

2019 ◽  
Vol 73 ◽  
pp. 481-489 ◽  
Author(s):  
Yongyao Li ◽  
Xiliang Zhang ◽  
Rongxuan Zhong ◽  
Zhihuan Luo ◽  
Bin Liu ◽  
...  
Keyword(s):  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Two Dimensional ◽  
Bose Einstein

scholarly journals Two-dimensional solitons in dipolar Bose-Einstein condensates with spin-orbit coupling

2016 ◽  
Vol 93 (2) ◽  
Author(s):  
Xunda Jiang ◽  
Zhiwei Fan ◽  
Zhaopin Chen ◽  
Wei Pang ◽  
Yongyao Li ◽  
...  
Keyword(s):  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Two Dimensional ◽  
Bose Einstein

scholarly journals Collapse of quasi-two-dimensional symmetrized Dresselhaus spin-orbit coupled Bose–Einstein condensate

2021 ◽  
Author(s):  
Sh. N. Mardonov
Keyword(s):  
Einstein Condensate ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Two Dimensional ◽  
Bose Einstein Condensate ◽  
Bose Einstein ◽  
Collapse Process ◽  
Strong Spin

AbstractHere, we study the collapse process of quasi-two-dimensional Bose–Einstein condensate with symmetrized Dresselhaus spin–orbit coupling. We show that at a sufficiently strong spin–orbit coupling the arising spin-dependent velocity compensates the attraction between particles and can prevent the collapse of the condensate. As a result, spin–orbit coupling can lead to a stable condensate rather than the collapse process.

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