Beyond-mean-field description of a trapped unitary Fermi gas with mass and population imbalance

Year: 2021

Authors: Pini M.; Pieri P.; Grimm R.; Strinati G.C.

Autors Affiliation: School of Science and Technology, Physics Division, Universita di Camerino, Camerino (MC), 62032, Italy; Dipartimento di Fisica e Astronomia, Universita di Bologna, Bologna (BO), I-40127, Italy; INFN, Sezione di Bologna, Bologna (BO), I-40127, Italy; Institut f

Abstract: A detailed description is given of the phase diagram for a two-component unitary Fermi gas with mass and population imbalance, for both homogeneous and trapped systems. This aims at providing quantitative benchmarks for the normal-to-superfluid phase transition of a mass-imbalanced Fermi gas in the temperature-polarization parameter space. A self-consistent t-matrix approach is adopted, which has already proven to accurately describe the thermodynamic properties of the mass- and population-balanced unitary Fermi gas. Our results provide a guideline for the ongoing experiments on heteronuclear Fermi mixtures.


Volume: 103 (2)      Pages from: 023314-1  to: 023314-10

KeyWords: Fermionic condensates
DOI: 10.1103/PhysRevA.103.023314