Stable High-Order Vortices in Spin-Orbit-Coupled Spin-1 Bose-Einstein Condensates
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arXiv
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| Autori principali: | , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866915560835514368 |
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| author | Zhang, Xin-Feng Luo, Huan-Bo Batle, Josep Liu, Bin Li, Yongyao |
| author_facet | Zhang, Xin-Feng Luo, Huan-Bo Batle, Josep Liu, Bin Li, Yongyao |
| contents | The present contribution explores phase transitions that occur in the ground state (GS) of spin-1 Bose-Einstein condensates (BECs) with spin-orbit coupling (SOC) under the action of gradient
magnetic fields. By solving the corresponding linearized system in an exact fashion, we identify the
conditions under which the GS phase transitions occur, thus transforming excited states into GS.
The study of the full nonlinear system, including both density-density and spin-spin interactions,
is numerically analyzed. For the case of repulsive spin-spin interactions, the results resemble the
linear case, while attractive spin-spin interactions lead to the formation of mixed-states near the GS
phase-transition points. Additionally, higher-order vortex solitons are found to be stable even in
the nonlinear regime. These findings demonstrate that arbitrary winding numbers can be achieved
as corresponding to stable GS and thus contributing to the understanding of topological properties
in SOC BECs. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_09832 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Stable High-Order Vortices in Spin-Orbit-Coupled Spin-1 Bose-Einstein Condensates Zhang, Xin-Feng Luo, Huan-Bo Batle, Josep Liu, Bin Li, Yongyao Quantum Gases Pattern Formation and Solitons The present contribution explores phase transitions that occur in the ground state (GS) of spin-1 Bose-Einstein condensates (BECs) with spin-orbit coupling (SOC) under the action of gradient magnetic fields. By solving the corresponding linearized system in an exact fashion, we identify the conditions under which the GS phase transitions occur, thus transforming excited states into GS. The study of the full nonlinear system, including both density-density and spin-spin interactions, is numerically analyzed. For the case of repulsive spin-spin interactions, the results resemble the linear case, while attractive spin-spin interactions lead to the formation of mixed-states near the GS phase-transition points. Additionally, higher-order vortex solitons are found to be stable even in the nonlinear regime. These findings demonstrate that arbitrary winding numbers can be achieved as corresponding to stable GS and thus contributing to the understanding of topological properties in SOC BECs. |
| title | Stable High-Order Vortices in Spin-Orbit-Coupled Spin-1 Bose-Einstein Condensates |
| topic | Quantum Gases Pattern Formation and Solitons |
| url | https://arxiv.org/abs/2510.09832 |