Two ground-state bright solitons in fractional-order spin–orbit-coupled Bose–Einstein condensates
| Autor: | Y Y Bao, S R Li, Y H Liu, T F Xu |
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| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Journal of Physics: Condensed Matter. 35:315402 |
| ISSN: | 1361-648X 0953-8984 |
| Popis: | We study two types of bright solitons in zero and non-zero detuning spin–orbit-coupled (SOC) Bose–Einstein condensates in fractional effect by variational and imaginary-time evolution method. The results show that the variation of SOC with fractional kinetic energy operator affects the existence and form of solitons. In particular, we found that SOC strength γ = 1.0 could be a transition point. In other words, for γ < 1.0 and γ ⩾ 1.0 , the soliton states and pseudo-spin polarization in non-zero detuning show opposite changes. In addition, moving bright solitons with zero and non-zero detuning are studied. |
| Databáze: | OpenAIRE |
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