Rotating Larkin-Ovchinnikov-Fulde-Ferrell state of the two-dimensional ultracold Fermi superfluid gas: Reentrant behavior of the critical angular velocity
Journal Article
·
· Physical Review. A
- 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
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