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arXiv 1009.4476cond-mat.quant-gas
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自旋分裂阱中费米子的振荡配对

Oscillatory pairing of fermions in spin-split traps

Kuei Sun, Julia S. Meyer, Daniel E. Sheehy, Smitha Vishveshwara

摘要:

作为实现费米子振荡配对的一种手段,我们研究了两个费米子“自旋”物种之间的超流配对,它们被限制在可调的自旋相关的捕获势。聚焦在一维极限,我们发现,随着自旋相关的陷阱之间的分离增加的费米子表现出不同的阶段,包括一个完全配对的阶段,自旋不平衡的阶段与振荡配对,和一个不成对的完全自旋极化的阶段。我们得到了费米子在这种自旋分裂阱中的相图,并讨论了这些相位在冷原子实验中的签名。

英文摘要:

As a means of realizing oscillatory pairing between fermions, we study superfluid pairing between two fermion "spin" species that are confined to adjustable spin-dependent trapping potentials. Focusing on the one-dimensional limit, we find that with increasing separation between the spin-dependent traps the fermions exhibit distinct phases, including a fully paired phase, a spin-imbalanced phase with oscillatory pairing, and an unpaired fully spin-polarized phase. We obtain the phase diagram of fermions in such a spin-split trap and discuss signatures of these phases in cold-atom experiments.

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。

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