Two ground-state bright solitons in fractional-order spin–orbit-coupled Bose–Einstein condensates

作者：Yajie Bao, S R Li, Y H Liu, T. F. Xu · 发表于：Journal of Physics Condensed Matter · 年份：2023 · DOI：10.1088/1361-648x/acd0f9 · 被引用次数：1 · 研究领域：Cold Atom Physics and Bose-Einstein Condensates、Strong Light-Matter Interactions、Nonlinear Photonic Systems

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 strengthγ=1.0could be a transition point. In other words, forγ<1.0andγ⩾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.