Eur. Phys. J. Special Topics 217, 153-162 (2013)
https://doi.org/10.1140/epjst/e2013-01763-9

Regular Article

Two-dimensional short-range interacting attractive and repulsive Fermi gases at zero temperature

Institute of Theoretical Physics, École polytechnique fédérale de Lausanne EPFL, 1015 Lausanne, Switzerland

^a e-mail: gianluca.bertaina@zoho.com

Received: 9 September 2012
Revised: 15 January 2013
Published online: 11 March 2013

Abstract

We study a two-dimensional two-component Fermi gas with attractive or repulsive short-range interactions at zero temperature. We use Diffusion Monte Carlo with Fixed Node approximation in order to calculate the energy per particle and the opposite spin pair distribution functions. We show the relevance of beyond mean field effects and verify the consistency of our approach by using Tan's Contact relations.