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

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.

Authors:
; ;  [1]
  1. Dipartimento di Fisica ''Galileo Galilei'' and CNISM, Universita di Padova, I-35122 Padova (Italy)
Publication Date:
OSTI Identifier:
22068778
Resource Type:
Journal Article
Journal Name:
Physical Review. A
Additional Journal Information:
Journal Volume: 84; Journal Issue: 3; Other Information: (c) 2011 American Institute of Physics; Country of input: Syrian Arab Republic; Journal ID: ISSN 1050-2947
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 74 ATOMIC AND MOLECULAR PHYSICS; BCS THEORY; BOSE-EINSTEIN CONDENSATION; CONDENSATES; FERMI GAS; LASERS; L-S COUPLING; POTENTIALS; RESONANCE; SPIN; TRIPLETS

Citation Formats

Dell'Anna, L., Mazzarella, G., and Salasnich, L. Condensate fraction of a resonant Fermi gas with spin-orbit coupling in three and two dimensions. United States: N. p., 2011. Web. doi:10.1103/PHYSREVA.84.033633.
Dell'Anna, L., Mazzarella, G., & Salasnich, L. Condensate fraction of a resonant Fermi gas with spin-orbit coupling in three and two dimensions. United States. doi:10.1103/PHYSREVA.84.033633.
Dell'Anna, L., Mazzarella, G., and Salasnich, L. Thu . "Condensate fraction of a resonant Fermi gas with spin-orbit coupling in three and two dimensions". United States. doi:10.1103/PHYSREVA.84.033633.
@article{osti_22068778,
title = {Condensate fraction of a resonant Fermi gas with spin-orbit coupling in three and two dimensions},
author = {Dell'Anna, L. and Mazzarella, G. and Salasnich, L.},
abstractNote = {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.},
doi = {10.1103/PHYSREVA.84.033633},
journal = {Physical Review. A},
issn = {1050-2947},
number = 3,
volume = 84,
place = {United States},
year = {2011},
month = {9}
}