Rabi Coupled Fermions in the BCS-BEC Crossover
Year: 2022
Authors: Dell’Anna L., De Bettin F., Salasnich L.
Autors Affiliation: Univ Padua, Dipartimento Fis & Astron G Galilei, Via Marzolo 8, I-35131 Padua, Italy; Univ Padua, QTech Ctr, Via Marzolo 8, I-35131 Padua, Italy; Ist Nazl Fis Nucl, Sez Padova, Via Marzolo 8, I-35131 Padua, Italy; CNR, Ist Nazl Ott, Via Nello Carrara 2, I-50019 Sesto Fiorentino, Italy.
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.
Journal/Review: CONDENSED MATTER
Volume: 7 (4) Pages from: 59-1 to: 59-12
More Information: L.S. acknowledges the BIRD project “Ultracold atoms in curved geometries” of the University of Padova for partial support.
This work was supported by the BIRD project “Ultracold atoms in curved geometries” of the University of Padova.KeyWords: BCS-BEC crossover; superfluidity; critical temperatureDOI: 10.3390/condmat7040059Connecting to view paper tab on IsiWeb: Click here