A Unitary Fermi Supersolid: The Larkin-Ovchinnikov Phase

Abstract

We present strong theoretical evidence that a Larkin-Ovchinnikov (LOFF/FFLO) pairing phase is favoured over the homogeneous superfluid and normal phases in three-dimensional unitary Fermi systems. Using a Density Functional Theory (DFT) based on the latest quantum Monte-Carlo calculations and experimental results, we show that this phase is competitive over a large region of the phase diagram. The oscillations in the number densities and pairing field have a substantial amplitude, and a period some 3 to 10 times the average interparticle separation. Within the DFT, the transition to a normal polarized Fermi liquid at large polarizations is smooth, while the transition to a fully-paired superfluid is abrupt.

4 pages, 3 figures, RevTeX4. (Minor updates to correspond with published version.)

References in corpus (11)

• Vortices and Superfluidity in a Strongly Interacting Fermi Gas
• Fermi-Polaron: Diagrammatic Monte Carlo for Divergent Sign-Alternating Series
• Normal state of a polarized Fermi gas at unitarity
• Quantum Monte Carlo Simulations of the BCS-BEC Crossover at Finite Temperature
• Local Density Functional Theory for Superfluid Fermionic Systems: The Unitary Gas
• Induced P-wave Superfluidity in Asymmetric Fermi Gases
• Broyden's Method in Nuclear Structure Calculations
• Zero Temperature Thermodynamics of Asymmetric Fermi Gases at Unitarity
• Larkin-Ovchinnikov state in resonant Fermi gas
• Determination of the Equation of State of a Two-Component Fermi Gas at Unitarity
• Magnetic-Field Variations of the Pair-Breaking Effects of Superconductivity in (TMTSF)2ClO4

Cited by in corpus (44)

• Observation of the supersolid stripe phase in spin-orbit coupled Bose-Einstein condensates
• Ultra-cold Polarized Fermi Gases
• Resonantly Interacting Fermions In a Box
• Effective-Range Dependence of Resonantly Interacting Fermions
• Heavy-Light Fermion Mixtures at Unitarity
• Large Amplitude Dynamics of the Pairing Correlations in a Unitary Fermi Gas
• Phase structure of mass- and spin-imbalanced unitary Fermi gases
• Phase structure of spin-imbalanced unitary Fermi gases
• Adaptive Multi-resolution 3D Hartree-Fock-Bogoliubov Solver for Nuclear Structure
• Hartree-Fock-Bogoliubov Theory of Polarized Fermi Systems
• Chandrasekhar-Clogston limit and critical polarization in a Fermi-Bose superfluid mixture
• Towards Quantum Turbulence in Cold Atomic Fermionic Superfluids
• Concomitant Modulated Superfluidity In Polarized Fermionic Gases
• Predicting Energies of Small Clusters from the Inhomogeneous Unitary Fermi Gas
• Bogoliubov-de Gennes study of trapped spin-imbalanced unitary Fermi gases
• Polarized Fermi gases at finite temperature in the BCS-BEC crossover
• Heat and spin transport in a cold atomic Fermi gas
• Dissipation Mechanisms in Fermionic Josephson Junction
• Induced P-wave superfluidity within full energy-momentum dependent Eliashberg approximation in asymmetric dilute Fermi gases
• Absence of inhomogeneous chiral phases in 2+1-dimensional four-fermion and Yukawa models
• Anomalous Dimers in Quantum Mixtures near Broad Resonances: Pauli Blocking, Fermi Surface Dynamics and Implications
• Larkin-Ovchinnikov superfluidity in a two-dimensional imbalanced atomic Fermi gas
• Disordered structures in ultracold spin-imbalanced Fermi gas
• A 30 W, sub-kHz frequency-locked laser at 532 nm
• Evolution of an attractive polarized Fermi gas: From a Fermi liquid of polarons to a non-Fermi liquid at the Fulde-Ferrell-Larkin-Ovchinnikov quantum critical point
• Generation and decay of Higgs mode in a strongly interacting Fermi gas
• Synchronization in rotating supersolids
• Feasibility of a Fulde-Ferrell-Larkin-Ovchinnikov superfluid Fermi atomic gas
• Spin-polarized low-density neutron matter
• Spin-imbalanced ultracold Fermi gases in a two-dimensional array of tubes
• Stability of persistent currents in superfluid fermionic rings
• Spin-dipole mode in a trapped Fermi gas near unitarity
• Examining the justification for the introduction of a fermion localization function
• Pairing properties of an odd-frequency superfluid Fermi gas
• BCS-BEC crossover of the strongly interacting ${}^6$Li-${}^{40}$K mixture
• Vortex lattice in spin-imbalanced unitary Fermi gas
• Hierarchy of pairing in imbalanced three-component one-dimensional Fermi gas
• Dynamics of Supersolid state: normal fluid, superfluid, and supersolid velocities
• Impurity-controlled vortex mobility and pair-breaking in fermionic superfluid rings
• Local Quantum Cooling for Large Fermi Systems with Pairing
• Framework for Polarized Superfluid Fermion Systems
• Exploring Strongly Interacting Gapless States: Cuprates, Pair Density Waves, and Fluctuating Superconductivity
• Detecting inhomogeneous chiral condensation from the bosonic two-point function in the $(1+1)$-dimensional Gross-Neveu model in the mean-field approximation
• Quantum vortex dipole as a probe of the normal component distribution