Tuning the tricritical point with spin-orbit coupling in polarized fermionic condensates

Renyuan Liao*, Yi Xiang Yu, Wu Ming Liu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

65 Citations (Scopus)

Abstract

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.

Original languageEnglish
Article number080406
JournalPhysical Review Letters
Volume108
Issue number8
DOIs
Publication statusPublished - 22 Feb 2012
Externally publishedYes

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