TY - JOUR
T1 - Tuning the tricritical point with spin-orbit coupling in polarized fermionic condensates
AU - Liao, Renyuan
AU - Yu, Yi Xiang
AU - Liu, Wu Ming
PY - 2012/2/22
Y1 - 2012/2/22
N2 - We investigate a two-component atomic Fermi gas with population imbalance in the presence of Rashba-type spin-orbit coupling (SOC). As a competition between SOC and population imbalance, the finite-temperature phase diagram reveals a large variety of new features, including the expanding of the superfluid state regime and the shrinking of both the phase separation and the normal regimes. For sufficiently strong SOC, the phase separation region disappears, giving way to the superfluid state. We find that the tricritical point moves toward a regime of low temperature, high magnetic field, and high polarization as the SOC increases.
AB - We investigate a two-component atomic Fermi gas with population imbalance in the presence of Rashba-type spin-orbit coupling (SOC). As a competition between SOC and population imbalance, the finite-temperature phase diagram reveals a large variety of new features, including the expanding of the superfluid state regime and the shrinking of both the phase separation and the normal regimes. For sufficiently strong SOC, the phase separation region disappears, giving way to the superfluid state. We find that the tricritical point moves toward a regime of low temperature, high magnetic field, and high polarization as the SOC increases.
UR - http://www.scopus.com/inward/record.url?scp=84863116606&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.108.080406
DO - 10.1103/PhysRevLett.108.080406
M3 - Article
AN - SCOPUS:84863116606
SN - 0031-9007
VL - 108
JO - Physical Review Letters
JF - Physical Review Letters
IS - 8
M1 - 080406
ER -