Oscillatory pairing of fermions in spin-split traps
arXiv:1009.4476 · doi:10.1103/PhysRevA.83.033608
Abstract
As a means of realizing oscillatory pairing between fermions, we study superfluid pairing between two fermion "spin" species that are confined to adjustable spin-dependent trapping potentials. Focusing on the one-dimensional limit, we find that with increasing separation between the spin-dependent traps the fermions exhibit distinct phases, including a fully paired phase, a spin-imbalanced phase with oscillatory pairing, and an unpaired fully spin-polarized phase. We obtain the phase diagram of fermions in such a spin-split trap and discuss signatures of these phases in cold-atom experiments.
5 pages, 5 figures, RevTeX
References in corpus (31)
- Many-Body Physics with Ultracold Gases
- Proximity effects in superconductor-ferromagnet heterostructures
- Theory of ultracold Fermi gases
- Atomic Scattering in Presence of an External Confinement and a Gas of Impenetrable Bosons
- Observation of resonance condensation of fermionic atom pairs
- Spin-Imbalance in a One-Dimensional Fermi Gas
- Confinement induced molecules in a 1D Fermi gas
- BEC-BCS crossover in "magnetized" Feshbach-resonantly paired superfluids
- Attractive Fermi gases with unequal spin populations in highly elongated traps
- Phase diagram of a strongly interacting polarized Fermi gas in one dimension
- Imbalanced Feshbach-resonant Fermi gases
- Finite temperature phase diagram of a polarised Fermi condensate
- BEC-BCS crossover, phase transitions and phase separation in polarized resonantly-paired superfluids
- Direct Imaging of Spatially Modulated Superfluid Phases in Atomic Fermion Systems
- Pairing states of a polarized Fermi gas trapped in a one-dimensional optical lattice
- Entropy exchange in a mixture of ultracold atoms
- Inhomogeneous superconducting state in quasi-one-dimensional systems
- Strongly interacting Fermi gases with density imbalance
- Determination of the Fermion Pair Size in a Resonantly Interacting Superfluid
- Spin gradient thermometry for ultracold atoms in optical lattices
- Exact Numerical Study of Pair Formation with Imbalanced Fermion Populations
- Thermometry with spin-dependent lattices
- Theory of quasi-one dimensional imbalanced Fermi gases
- Larkin-Ovchinnikov state in resonant Fermi gas
- Dynamic projection on Feshbach molecules: a probe of pairing and phase fluctuations
- Phases of a 2D Bose Gas in an Optical Lattice
- Luttinger liquid of trimers in Fermi gases with unequal masses
- Finite temperature QMC study of the one-dimensional polarized Fermi gas
- Pi-phases in balanced fermionic superfluids on spin-dependent optical lattices
- Phase separation in optical lattices in a spin-dependent external potential
- Spin polarizability of a trapped superfluid Fermi gas
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- Fermi gases in one dimension: From Bethe Ansatz to experiments
- Matrix product ansatz for Fermi fields in one dimension
- Single Impurity In Ultracold Fermi Superfluids
- Pair tunneling, phase separation and dimensional crossover in imbalanced fermionic superfluids in a coupled array of tubes
- Oscillatory pairing amplitude and magnetic compressible-incompressible transitions in imbalanced fermionic superfluids in optical lattices of elongated tubes
- Tuning between singlet, triplet, and mixed pairing states in an extended Hubbard chain
- Topological Fulde-Ferrell Superfluids of a Spin-Orbit Coupled Fermi Gas
- Population imbalanced lattice fermions near the BCS-BEC crossover: I.The breached pair and metastable FFLO phases
- Population imbalanced lattice fermions near the BCS-BEC crossover: II. The FFLO regime and its thermal signatures
- Strong coupling s-wave superconductors in the extreme Pauli limit: I.The breached pair and metastable FFLO phases
- Quantum Coherent States of Interacting Bose-Fermi Mixtures in One Dimension
- Component separation of two-component fermion clouds in a spin-dependent external potential by spin-density-functional theory
- Pairing correlations in a trapped one-dimensional Fermi gas
- Bose-Hubbard model with occupation-parity couplings
- Trapped imbalanced fermionic superfluids in one dimension: A variational approach