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arXiv 1206.5380cond-mat.quant-gas
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具有吸引相互作用的二维费米液体

A two-dimensional Fermi liquid with attractive interactions

B. Fröhlich, M. Feld, E. Vogt, M. Koschorreck, M. Köhl, C. Berthod, T. Giamarchi

摘要:

实现并研究了一种具有吸引相互作用的二维费米液体。利用动量分辨光电子能谱,我们测量了自能,确定了短程相互作用势的接触参数,并得到了它们对相互作用强度的依赖关系。我们成功地比较了测量的理论分析,适当地考虑到有限的温度,谐波陷阱,并在几个二维气体具有不同的峰值密度的平均。

英文摘要:

We realize and study an attractively interacting two-dimensional Fermi liquid. Using momentum resolved photoemission spectroscopy, we measure the self-energy, determine the contact parameter of the short-range interaction potential, and find their dependence on the interaction strength. We successfully compare the measurements to a theoretical analysis, properly taking into account the finite temperature, harmonic trap, and the averaging over several two-dimensional gases with different peak densities.

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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