Superfluid-insulator transition and BCS-BEC crossover in dirty ultracold Fermi gas
Abstract
Superfluid-insulator transition in an ultracold Fermi gas in the external disorder potential of the amplitude V0 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 V0 and in the plane (V0, 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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