Abstract
We investigate the three-dimensional BCS–BEC crossover in the presence of a Rabi coupling, which strongly affects several properties of the system, such as the chemical potential, the pairing gap and the superfluid density. We determine the critical interaction strength, below which the system is normal also at zero temperature. Finally, we calculate the effect of the Rabi coupling on the critical temperature of the superfluid-to-normal phase transition by using different theoretical schemes.
Funder
BIRD project “Ultracold atoms in curved geometries” of the University of Padova
Subject
Condensed Matter Physics,Electronic, Optical and Magnetic Materials