Rashba自旋轨道耦合偶极玻色子的介子基态
Meron Ground State of Rashba Spin-Orbit-Coupled Dipolar Bosons
摘要：
我们研究了偶极相互作用对具有合成Rashba自旋轨道耦合的玻色-爱因斯坦凝聚体的影响。我们考虑的偶极相互作用包括自旋和轨道角动量的耦合项，其耦合方式与单粒子Rashba耦合完全一致。我们表明，这种内部的自旋轨道耦合中起着至关重要的作用，在丰富的基态相图的被困冷凝。特别是，我们预测出现一个分子稳定的基态与介子自旋配置。
英文摘要：
We study the effects of dipolar interactions on a Bose-Einstein condensate with synthetically generated Rashba spin-orbit coupling. The dipolar interaction we consider includes terms that couple spin and orbital angular momentum in a way perfectly congruent with the single-particle Rashba coupling. We show that this internal spin-orbit coupling plays a crucial role in the rich ground-state phase diagram of the trapped condensate. In particular, we predict the emergence of a thermodynamically stable ground state with a meron spin configuration.
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