脏超冷费米气体中的超流-绝缘体相变和BCS-BEC渡越
Superfluid-insulator transition and BCS-BEC crossover in dirty ultracold Fermi gas
摘要：
研究了超冷费米气体在振幅为$V_0$的外部无序势中的超流-绝缘体转变，该转变是气体浓度$n$和磁场$B$的函数，并存在费什巴赫共振.我们找到了在给定$V_0$的平面（$B,n$）中的零温相图和在给定$B$的平面$(V_0, n)$中的零温相图。我们对BEC边的结果也适用于玻色气体中的超流-绝缘体相变。
英文摘要：
Superfluid-insulator transition in an ultracold Fermi gas in the external disorder potential of the amplitude $V_0$ is studied as a function of the concentration of the gas $n$ and magnetic field $B$ in the presence of the Feshbach resonance. We find the zero temperature phase diagrams in the plane ($B,n$) at a given $V_0$ and in the plane $(V_0, n)$ at a given $B$. Our results for BEC side of the diagram are also valid for the superfluid-insulator transition in a Bose gas.
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