Work

Dipolar Bose gas with $lt;i$gt;SU$lt;/i$gt;(3) spin−orbit coupling held under a toroidal trap

Year: 2024

Type: article

Abstract: We consider a dipolar spin-1 Bose gas with SU(3) spin−orbit coupling trapped in a two-dimensional toroidal trap. Due to the combined effects of SU(3) spin−orbit coupling, dipole−dipole interaction, and spin−exchange interaction, the system exhibits a rich variety of ground-state phases and topological defects, including modified stripe, azimuthal distributed petal and triangular lattice, double-quantum spin vortices, and so on. In particular, by studying the spin texture of such a system, it is found that the formation and transformation between meron and skyrmion topological spin textures can be realized by a choice of dipole−dipole interaction, SU(3) spin−orbit coupling, and spin−exchange interaction. We also give an experimental protocol to observe such novel states within current experimental capacity.

Source: Frontiers of Physics

DOI: 10.15302/frontphys.2025.022202

Authors: Fang Wang, Jia Liu, Si-Lin Chen, Lin Wen, Xue-Ying Yang, Xiao-Fei Zhang

Institutions: Shaanxi University of Science and Technology, Northwest University, Shaanxi Key Laboratory for Theoretical Physics Frontiers, Chongqing Normal University, National University of Defense Technology

Language: English

Topic: Cold Atom Physics and Bose-Einstein Condensates

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: bronze

Funders: National Natural Science Foundation of China, Natural Science Foundation of Chongqing, Education Department of Shaanxi Province