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arXiv 1012.3341cond-mat.quant-gasquant-ph
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具有磁偶极相互作用的原子气体中的超固相

Supersolid phase in atomic gases with magnetic dipole interaction

Adam Bühler, Hans Peter Büchler

摘要:

实验实现光晶格中冷原子气体超固相的一个主要障碍是通过磁偶极-偶极相互作用实现的最近邻相互作用的弱点。在这封信中,我们表明,使用一个大的填充原子内的每个井的特征能量标度强烈增强。在此范围内,系统由转子模型很好地描述,并且相图的定性行为源自平均场论。我们发现一个稳定的超固相与铬原子的现实参数。

英文摘要:

A major obstacle for the experimental realization of a supersolid phase with cold atomic gases in an optical lattice is the weakness of the nearest-neighbor interactions achievable via magnetic dipole-dipole interactions. In this letter, we show that using a large filling of atoms within each well the characteristic energy scales are strongly enhanced. Within this regime, the system is well described by the rotor model, and the qualitative behavior of the phase diagram derives from mean-field theory. We find a stable supersolid phase for realistic parameters with chromium atoms.

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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