Condensate fraction of a resonant Fermi gas with spin-orbit coupling in three and two dimensions

Anno: 2011

Autori: Dell’Anna L., Mazzarella G., Salasnich L.

Affiliazione autori: Univ Padua, Dipartimento Fis Galileo Galilei, I-35122 Padua, Italy;
Univ Padua, CNISM, I-35122 Padua, Italy

Abstract: We study the effects of laser-induced Rashba-like spin-orbit coupling along the Bardeen-Cooper-Schrieffer-Bose-Einstein condensate (BCS-BEC) crossover of a Feshbach resonance for a two-spin-component Fermi gas. We calculate the condensate fraction in three and two dimensions and find that this quantity characterizes the crossover better than other quantities, like the chemical potential or the pairing gap. By considering both the singlet and the triplet pairings, we calculate the condensate fraction and show that a large-enough spin-orbit interaction enhances the singlet condensate fraction in the BCS side while suppressing it on the BEC side.

Giornale/Rivista: PHYSICAL REVIEW A

Volume: 84 (3)      Da Pagina: 033633  A: 033633

Parole chiavi: ultracold atoms; bcs-bec crossover;
DOI: 10.1103/PhysRevA.84.033633

Citazioni: 56
dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2025-05-18
Riferimenti tratti da Isi Web of Knowledge: (solo abbonati)
Link per visualizzare la scheda su IsiWeb: Clicca qui
Link per visualizzare la citazioni su IsiWeb: Clicca qui