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中文摘要：
研究了囚禁在光晶格中的旋量玻色-爱因斯坦凝聚体（BEC）形成的原子自旋链中的相干非线性自旋波的激发与调制不稳定性.通过解析分析,得到了调制不稳定性的一般判据以及其对原子自旋的长程耦合的依赖关系.在蓝失谐和红失谐光晶格的情况下,分别具体分析了长程非线性自旋耦合,包括光诱导的和静磁诱导的偶极-偶极相互作用对相干自旋波调制不稳定性的影响.
英文摘要：
The modulational instability（MI）of nonlinear coherent spin waves in an atomic spin chain of spinor Bose-Einstein condensates confined in an optical lattice is studied.Analytically we obtained the criteria for the MI of nonlinear coherent spin waves and its relation with the long-range nonlinear spin coupling.We analysed the MI in the case of blue-detuned and red-detuned opctical lattice respectively.It was found that the long-range nonlinear spin coupling in the optical lattice is due to light-induced and static magnetic field-induced dipole-dipole interaction.
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Phase separation in a two-species atomic Bose-Einstein condensate with an interspecies Feshbach reso
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