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arXiv · 1002.0922

Short-distance and short-time structure of a unitary Fermi gas

Dam T. Son·Ethan G. Thompson
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Abstract

We consider the operator product expansions for unitarity fermions. We compute the dynamic structure factor S(q,w) at large frequency and wavenumber away from the one-particle peak. The overall normalization of S(q,w) is determined by Tan's contact parameter, and the dependence on q and w is obtained in closed analytic form. We also find energy deposited into the system by small, rapid variations of the inverse scattering length.

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Dam T. Son, Ethan G. Thompson. 2010-03-28. Short-distance and short-time structure of a unitary Fermi gas. https://doi.org/10.1103/physreva.81.063634

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