Signatures of pairing and spin-orbit coupling in correlation functions of Fermi gases

Chien-Te Wu, Brandon M. Anderson, Rufus Boyack, K. Levin

研究成果: Article同行評審

8 引文 斯高帕斯(Scopus)

摘要

We derive expressions for density-density and spin-spin correlation functions in the (greatly enhanced) pseudogap phase of spin-orbit-coupled Fermi gases. Density-density correlation functions are found to be relatively insensitive to the presence of these Rashba spin-orbit effects. To arrive at spin-spin correlation functions we derive new f-sum rules, valid even in the absence of a spin conservation law. Our spin-spin correlation functions are shown to be fully consistent with these f-sum rules. Importantly, they provide a clear signature of the Rashba band structure and separately help to establish the presence of a pseudogap.

原文English
文章編號220504
期刊Physical Review B - Condensed Matter and Materials Physics
91
發行號22
DOIs
出版狀態Published - 17 6月 2015

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