Chandrasekhar-Clogston limit and phase separation in Fermi mixtures at Unitarity - Condensed Matter > Other Condensed MatterReport as inadecuate




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Abstract: Using many-body results available from diagrammatic and {\it ab initio} MonteCarlo calculations we analyze the phase diagram$\mu=\mu {\uparrow}+\mu {\downarrow}-2$ versus$h=\mu {\uparrow}-\mu {\downarrow}-2$ of a unitary Fermi gas at zerotemperature with population imbalance and unequal masses. We identify differentregions where the gas is superfluid, partially polarized or fully polarized anddetermine the corresponding coexistence conditions. The asymmetry in the phasediagram, caused by the mass imbalance, and its effect on theChandrasekhar-Clogston limit for the critical polarization are explicitlydiscussed. The equation of state of the superfluid and normal phases isemployed, within the local density approximation, to predict novel phaseseparated configurations in the presence of harmonic trapping potentials.



Author: I. Bausmerth, A. Recati, S. Stringari

Source: https://arxiv.org/







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