Superfluid-Normal Quantum Phase Transitions in an Imbalanced Fermi Gas
arXiv:2003.00156 · doi:10.1088/1361-6455/ab7078
Abstract
We investigate the superfluid-to-normal zero temperature quantum phase transitions of asymmetric two-component Fermi gases as a function of the chemical potential imbalance . The calculations are performed for homogeneous and trapped imbalanced systems. We concentrate at unitarity, characterized by a divergent interaction parameter , where most of the current experiments are realized. For homogeneous systems, we determine the critical chemical potential imbalance at which possible phase transitions occur. In the case of trapped gases, we show how can be consistently determined from experimental observations.
7 pages, 2 figures, to appear in JPB
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