Weyl type spin–orbit coupled ferromagnetic Bose–Einstein condensates under rotation

Journal Article · Sat Sep 15 04:00:00 EDT 2018 · Annals of Physics

DOI:https://doi.org/10.1016/J.AOP.2018.07.007· OSTI ID:22848378

Li, Ji ^[1]; Zhang, Xiao-Fei ^[2]; Liu, Wu-Ming ^[1]

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1. Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190 (China)
2. Key Laboratory of Time and Frequency Primary Standards, National Time Service Center, Chinese Academy of Sciences, Xi’an 710600 (China)

Highlights: Spinor Bose–Einstein condensates with Weyl type spin–orbit coupling and rotation are considered. Different topological patterns are obtained in the full parameter space. Effects of spin-independent and spin-dependent interactions on the ground state are also discussed. -- Abstract: We investigate the ground state of ferromagnetic Bose–Einstein condensates with Weyl type spin–orbit coupling and rotation. When the spin–orbit coupling is strong, the ground state of the system exhibits square lattice phase for the non-rotation case, while two half-skyrmion chains can occur, which is perpendicular to each other, for the rotation case. For the weak spin–orbit coupling case, half-skyrmion displays the symmetrical arrangement around Mermin–Ho vortex at the center of condensates as the rotation frequency is increased. Moreover, the effects of spin-independent and spin-dependent interactions on the ground state are also studied.

• OSTI ID: 22848378
• Journal Information: Annals of Physics, Journal Name: Annals of Physics Vol. 396; ISSN 0003-4916; ISSN APNYA6
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BOSE-EINSTEIN CONDENSATION
GROUND STATES
INTERACTIONS
L-S COUPLING
SKYRME POTENTIAL
SPIN
SPINORS