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arXiv · 0803.2293

Superfluid to insulator phase transition in a unitary Fermi gas

Nir Barnea
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Abstract

We study the evolution of the energy gap in a unitary Fermi gas as a function of temperature. To this end we approximate the Fermi gas by the Hubbard lattice Hamiltonian and solve using the dynamical mean-field approximation. We have found that below the critical temperature, Tc, the system is a superfluid and the energy gap is decreasing monotonously. For temperatures above Tc the system is an insulator and the corresponding energy gap is monotonously increasing.

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Nir Barnea. 2008-03-15. Superfluid to insulator phase transition in a unitary Fermi gas. https://doi.org/10.1103/physreva.78.053629

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