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arXiv · 0805.2130

The Trapped Polarized Fermi Gas at Unitarity

D. Blume
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Abstract

We consider population-imbalanced two-component Fermi gases under external harmonic confinement interacting through short-range two-body potentials with diverging s-wave scattering length. Using the fixed-node diffusion Monte Carlo method, the energies of the "normal state" are determined as functions of the population-imbalance and the number of particles. The energies of the trapped system follow, to a good approximation, a universal curve even for fairly small systems. A simple parameterization of the universal curve is presented and related to the equation of state of the bulk system.

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D. Blume. 2008-05-14. The Trapped Polarized Fermi Gas at Unitarity. https://doi.org/10.1103/physreva.78.013635

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