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arXiv 1312.5752cond-mat.quant-gas
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具有各向异性相互作用的冷气

On cold gases with anisotropic interactions

Alexander Pikovski

摘要:

本文研究了在极化场作用下,具有一般形式各向异性相互作用的冷粒子气体。特殊情况是原子或分子与偶极或四极四极相互作用。它示出的偏振场的方向上的可观察的角度依赖性在很大程度上是由对称性。对于受限准二维几何中的气体,有效相互作用以一般形式计算。偶极和四极气体的一些例子被认为是。得出结论,当各向异性力的研究在一般的方式,人们可以得到更简单的结果和更好地理解某些问题。

英文摘要:

A cold gas of particles with anisotropic interactions of general form, due to a polarizing field, is studied. Special cases are atoms or molecules with dipole-dipole or quadrupole-quadrupole interactions. It is shown that the angular dependence of an observable on the direction of the polarizing field is largely determined by symmetry. For a gas in a confined quasi two-dimensional geometry, the effective interaction is calculated in general form. Some examples of dipole and quadrupole gases are considered. It is concluded that when anisotropic forces are studied in a general manner, one can obtain simpler results and better understanding for some problems.

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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