Zero Temperature Thermodynamics of Asymmetric Fermi Gases at Unitarity

Abstract

The equation of state of a dilute two-component asymmetric Fermi gas at unitarity is subject to strong constraints, which affect the spatial density profiles in atomic traps. These constraints require the existence of at least one non-trivial partially polarized (asymmetric) phase. We determine the relation between the structure of the spatial density profiles and the T=0 equation of state, based on the most accurate theoretical predictions available. We also show how the equation of state can be determined from experimental observations.

arXiv comment10 pages and 7 figures. (Minor changes to correspond with published version.)

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