arXiv subjects

Gianluca Bertaina

Publications and source records attributed to Gianluca Bertaina.

20 records · Page 2Linked to original sources

arXiv2014

Energy of strongly attractive Bose-Fermi mixtures

We discuss how approximate theories for Bose-Fermi mixtures recover in the molecular limit the expected expression for Fermi-Fermi mixtures of molecules and unpaired fermions. In particular, we compare the energy of the system resulting from a T-matrix diagrammatic approach with that obtained with Variational and Fixed-Node Diffusion Quantum Monte Carlo methods.

cond-mat.quant-gas↗

arXiv2013

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

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.

cond-mat.quant-gas↗