Spinor Condensates in Magnetic Fields

旋量凝聚体具有旋转对称性，反映了塞曼简并流形中基态原子的球形性质和各向同性s波原子-原子相互作用。在真实的实验室环境中不可避免的非零磁场（B-）打破了这种束缚，并导致不同塞曼态的不同能级位移，深刻地改变了凝聚态的性质。本计划主要研究磁场中旋量凝聚的理论。主要的科学目标是推进原子量子气体的前沿，特别是旋量凝聚体物理，它具有独立控制运动自由度和内部自由度的能力，是工程非经典原子态和大质量原子-原子纠缠的有希望的候选者。

Spinor condensates possess rotational symmetry reflecting the spherical nature of ground stateatoms in Zeeman degenerate manifolds and isotropic s-wave atom-atom interactions. A nonvanishing magnetic (B-) .eld, unavoidable in real laboratory situations, breaks this symmetryand causes different level shifts for different Zeeman states, profoundly changing condensateproperties. This proposal concentrates on theoretical studies of spinor condensates in magneticfields. The primary scientific objective is to advance the frontier of atomic quantum gases, especially the physics of spinor condensates, which with the ability of independent control for themotional and internal degrees of freedom, are promising candidates for engineering nonclassicalatomic states and massive atom-atom entanglement.