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arXiv 0811.3054cond-mat.supr-con
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静止和旋转状态下囚禁费米原子气体p波超流体的自发质量流和织构

Spontaneous mass current and textures of p-wave superfluids of trapped Fermionic atom gases at rest and under rotation

Y. Tsutsumi, K. Machida

摘要:

在Ginzburg-Landau框架下,从理论上证明了三维简谐势阱中中性原子气体的p波超流体在静止状态下存在自发质量流,其方向与势阱的几何形状有关.在旋转下,各种类型的序参量纹理是稳定的,包括Mermin-Ho和Anderson-Toulouse-Andrihetkin涡。在雪茄形状的陷阱中,自发电流沿旋转轴的方向流动,因此垂直于普通的旋转电流。这些特征,自发的质量流在休息和纹理的形成,可以用来诊断p波超流性。

英文摘要:

It is found theoretically based on the Ginzburg-Landau framework that p-wave superfluids of neutral atom gases in three dimension harmonic traps exhibit spontaneous mass current at rest, whose direction depends on trap geometry. Under rotation various types of the order parameter textures are stabilized, including Mermin-Ho and Anderson-Toulouse-Chechetkin vortices. In a cigar shape trap spontaneous current flows longitudial to the rotation axis and thus perpendicular to the ordinary rotational current. These features, spontaneous mass current at rest and texture formation, can be used as diagnoses for p-wave superfluidity.

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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