Rotating Larkin-Ovchinnikov-Fulde-Ferrell state of the two-dimensional ultracold Fermi superfluid gas: Reentrant behavior of the critical angular velocity

Journal Article · Thu Oct 15 00:00:00 EDT 2009 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.80.043610· OSTI ID:21316447

Kulic, Miodrag L; Sedrakian, Armen ^[1]; Rischke, Dirk H ^[1]

---

1. Institute for Theoretical Physics, Goethe University, D-60438 Frankfurt am Main (Germany)

A rotating ultracold S-wave superfluid Fermi gas is studied when the mismatch in chemical potentials {delta}{mu} (and the population imbalance {delta}n) corresponds to the Larkin-Ovchinnikov-Fulde-Ferrell state in the vicinity of the Lifshitz critical point. It is shown that under these conditions the critical angular velocity {omega}{sub c2} in two-dimensional systems is an oscillating function of temperature and {delta}n giving rise to reentrant superfluid phases. The reason for this behavior is the population by Cooper pairs of the Landau levels (n{>=}1) above the lowest one (n=0)

• OSTI ID: 21316447
• Journal Information: Physical Review. A, Vol. 80, Issue 4; Other Information: DOI: 10.1103/PhysRevA.80.043610; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ANGULAR VELOCITY
COOPER PAIRS
FERMI GAS
FERMIONS
POPULATIONS
POTENTIALS
S WAVES
SUPERFLUIDITY
TEMPERATURE DEPENDENCE
TWO-DIMENSIONAL CALCULATIONS