Spin Faraday pattern formation in a circular spin-orbit coupled Bose-Einstein condensate with stripe phase
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866912763420344320 |
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| author | Chen, Shixiang Liang, Hongguang Wang, Juan Li, Yan |
| author_facet | Chen, Shixiang Liang, Hongguang Wang, Juan Li, Yan |
| contents | We investigate the spin Faraday pattern formation in a periodically driven, pancake-shaped spin-orbit-coupled (SOC) Bose-Einstein condensate (BEC) prepared with stripe phase. By modulating atomic interactions using in-phase and out-of-phase protocols, we observe collective excitation modes with distinct rotational symmetries (L-fold). Crucially, at the critical modulation frequency, out-of-phase modulation destabilizes the L = 6 pattern, whereas in-phase modulation not only preserves high symmetry but also excites higher-order modes. Unlike conventional binary BECs, Faraday patterns emerge here without initial noise due to SOC-induced symmetry breaking, with all patterns exhibiting supersolid characteristics. Furthermore, we demonstrate control over pattern symmetry, radial nodes, and pattern radius by tuning the modulation frequency, providing a new approach for manipulating quantum fluid dynamics. This work establishes a platform for exploring supersolidity and nonlinear excitations in SOC systems with stripe phase. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_15263 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Spin Faraday pattern formation in a circular spin-orbit coupled Bose-Einstein condensate with stripe phase Chen, Shixiang Liang, Hongguang Wang, Juan Li, Yan Quantum Gases Atomic Physics We investigate the spin Faraday pattern formation in a periodically driven, pancake-shaped spin-orbit-coupled (SOC) Bose-Einstein condensate (BEC) prepared with stripe phase. By modulating atomic interactions using in-phase and out-of-phase protocols, we observe collective excitation modes with distinct rotational symmetries (L-fold). Crucially, at the critical modulation frequency, out-of-phase modulation destabilizes the L = 6 pattern, whereas in-phase modulation not only preserves high symmetry but also excites higher-order modes. Unlike conventional binary BECs, Faraday patterns emerge here without initial noise due to SOC-induced symmetry breaking, with all patterns exhibiting supersolid characteristics. Furthermore, we demonstrate control over pattern symmetry, radial nodes, and pattern radius by tuning the modulation frequency, providing a new approach for manipulating quantum fluid dynamics. This work establishes a platform for exploring supersolidity and nonlinear excitations in SOC systems with stripe phase. |
| title | Spin Faraday pattern formation in a circular spin-orbit coupled Bose-Einstein condensate with stripe phase |
| topic | Quantum Gases Atomic Physics |
| url | https://arxiv.org/abs/2507.15263 |