旋转二分量玻色-爱因斯坦凝聚体中的涡旋晶格锁定
Vortex Lattice Locking in Rotating Two-Component Bose-Einstein Condensates
摘要：
旋转超流体的涡旋密度除以其粒子质量，通过费曼关系决定了超流体的角速度。为了发现费曼关系如何适用于超流混合物，我们研究了旋转的两组分玻色-爱因斯坦凝聚体，由不同质量的玻色子组成。我们发现，在足够强的物种间的吸引力的情况下，两个凝聚体的涡旋晶格锁定和旋转的驱动频率，而超流体本身以两个不同的速度旋转，其比率是两个物种的粒子质量之间的比率。在本文中，我们描述的涡锁定状态，建立其制度的稳定性，并发现它的生存在一个磁盘小于临界半径，超过该涡成为无约束的，和两个玻色气体环一起旋转的频率的外部驱动器。
英文摘要：
The vortex density of a rotating superfluid, divided by its particle mass, dictates the superfluid's angular velocity through the Feynman relation. To find how the Feynman relation applies to superfluid mixtures, we investigate a rotating two-component Bose-Einstein condensate, composed of bosons with different masses. We find that in the case of sufficiently strong interspecies attraction, the vortex lattices of the two condensates lock and rotate at the drive frequency, while the superfluids themselves rotate at two different velocities, whose ratio is the ratio between the particle mass of the two species. In this paper, we characterize the vortex-locked state, establish its regime of stability, and find that it surives within a disk smaller than a critical radius, beyond which vortices become unbound, and the two Bose-gas rings rotate together at the frequency of the external drive.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
