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

Dam T. Son and Ethan G. Thompson
Phys. Rev. A 81, 063634 – Published 25 June 2010

Abstract

We consider the operator product expansions for unitarity fermions. We compute the dynamic structure factor S(q,ω) at large frequency and wave number away from the one-particle peak. The overall normalization of S(q,ω) is determined by Tan’s contact parameter, and the dependence on q and ω 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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  • Received 28 March 2010

DOI:https://doi.org/10.1103/PhysRevA.81.063634

©2010 American Physical Society

Authors & Affiliations

Dam T. Son and Ethan G. Thompson

  • Institute for Nuclear Theory, University of Washington, Seattle, Washington 98195-1550, USA

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Issue

Vol. 81, Iss. 6 — June 2010

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