Inhomogeneous state of few-fermion superfluids

Abstract

The few-fermion atomic gas is an ideal setting to explore inhomogeneous superfluid pairing analogous to the Larkin-Ovchinnikov state. Two up and one down-spin atom is the minimal configuration that displays an inhomogeneous pairing density whereas imbalanced systems containing more fermions present a more complex pairing topology. With more than eight atoms trapped the system approaches the macroscopic superfluid limit. An oblate trap with a central barrier offers a direct experimental probe of pairing inhomogeneity.

References in corpus (13)

• Observation of Bose-Einstein Condensation of Molecules
• Fulde-Ferrell-Larkin-Ovchinnikov State in Heavy Fermion Superconductors
• Phase diagram of a strongly interacting polarized Fermi gas in one dimension
• Ultra-cold Polarized Fermi Gases
• Analytical solutions for the dynamics of two trapped interacting ultracold atoms
• Exact quantum Monte Carlo study of one dimensional trapped fermions with attractive contact interactions
• Three attractively interacting fermions in a harmonic trap: Exact solution, ferromagnetism, and high-temperature thermodynamics
• Effective Theory for Trapped Few-Fermion Systems
• Level crossing in the three-body problem for strongly interacting fermions in a harmonic trap
• Ferromagnetic spin correlations in a few-fermion system
• Atom-dimer scattering for confined ultracold fermion gases
• Two interacting fermions in a 1D harmonic trap: matching the Bethe ansatz and variational approaches
• Exploring exchange mechanisms with a cold atom gas

Cited by in corpus (11)

• One-dimensional mixtures of several ultracold atoms: a review
• Pairing of few Fermi atoms in one dimension
• Three interacting atoms in a one-dimensional trap: A benchmark system for computational approaches
• Signatures of unconventional pairing in spin-imbalanced one-dimensional few-fermion systems
• Finite-range effects in the unitary Fermi polaron
• Abnormal Superfluid Fraction of Harmonically Trapped Few-Fermion Systems
• Intercomponent correlations in attractive one-dimensional mass-imbalanced few-body mixtures
• High-fidelity pseudopotentials for the contact interaction
• Diffusion Monte Carlo study of a spin-imbalanced two-dimensional Fermi gas with attractive interactions
• Multi-particle instability in a spin-imbalanced Fermi gas
• Exact ground state for the four-electron problem in a 2D finite honeycomb lattice