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Chaos Solitons & Fractals

Abundant vortex dynamics in spin-1 Bose–Einstein condensates induced by Rashba spin–orbit coupling

Zhong Yu, Qin Zhou

Published Oct 5, 2024• 14 citations
Publisher
DOI
10.1016/j.chaos.2024.115590

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We investigate the dynamics of rotating pseudo-spin-1/2 Bose–Einstein condensates (BECs) with Rashba spin–orbit coupling (SOC) in a quasicrystalline optical lattice (QOL). For given parameters, the system evolves from an initial heliciform-stripe phase into a final visible vortex necklace with a giant vortex and a hidden vortex necklace. Simultaneously, the corresponding spin texture undergoes a transition from a meron–antimeron pair to a half-antiskyrmion necklace. During the dynamic evolution process, the angular momentum increases gradually, and then approaches to a convergent value. Furthermore, typical quantum phases of rotating two-component BECs with SOC in different external potentials are summarized.