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arXiv · 1006.4723

Comment on "Normal phase of an imbalanced Fermi gas"

Zhenhua Yu·Sascha Zöllner·C. J. Pethick
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Abstract

Recently Mora and Chevy [Phys. Rev. Lett. 104, 230402 (2010), arXiv:1003.0213v2], in studying the energy of an atomic Fermi gas consisting of a majority species, 1, and a minority species, 2, showed that, due to interatomic interactions, the energy density E of the gas has a contribution of the form E^(2)= f n_2^2 /2, where n_i is the density of species i. They attribute this term to a `modification of the single polaron properties due to Pauli blocking'. In this Comment, we demonstrate that E^(2) may equivalently be understood in terms of the familiar interaction between minority atoms induced by the majority component.

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Zhenhua Yu, Sascha Zöllner, C. J. Pethick. 2010-06-24. Comment on "Normal phase of an imbalanced Fermi gas". https://doi.org/10.1103/physrevlett.105.188901

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