Engineering Superfluidity in Bose-Fermi Mixtures of Ultracold Atoms

Abstract

We investigate many-body phase diagrams of atomic boson-fermion mixtures loaded in the two-dimensional optical lattice. Bosons mediate an attractive, finite-range interaction between fermions, leading to fermion pairing phases of different orbital symmetries. Specifically, we show that by properly tuning atomic and lattice parameters it is possible to create superfluids with $s$-, $p$-, and d-wave pairing symmetry as well as spin and charge density wave phases. These phases and their stability are analyzed within the mean-field approximation for systems of ${}^{40}$K-${}^{87}$Rb and ${}^{40}$K-${}^{23}$Na mixtures. For the experimentally accessible regime of parameters, superfluids with unconventional fermion pairing have transition temperature around a percent of the Fermi energy.

Revised version with a new paragraph for system preparation

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Cited by in corpus (48)

• Many-Body Physics with Ultracold Gases
• Non-stationary coherent quantum many-body dynamics through dissipation
• Localization of bosonic atoms by fermionic impurities in a 3d optical lattice
• Free fermion antibunching in a degenerate atomic Fermi gas released from an optical lattice
• Species-specific optical lattices
• Rotation of quantum impurities in the presence of a many-body environment
• Cold Atoms and Molecules in Self-Assembled Dipolar Lattices
• Majorana modes and $p$-wave superfluids for fermionic atoms in optical lattices
• Heteronuclear molecules in an optical lattice: Theory and experiment
• Competing Orders in two-dimensional Bose-Fermi mixtures
• Supersolidity of cold-atom Bose-Fermi mixtures in optical lattices
• Creating p-wave superfluids and topological excitations in optical lattices
• Phase sensitive measurements of order parameters for ultracold atoms through two particles interferometry
• Strong coupling theory for the superfluidity of Bose-Fermi mixtures
• Sound velocity and dimensional crossover in a superfluid Fermi gas in an optical lattice
• Mean-field phase diagram of the Bose-Fermi Hubbard model
• Strongly Interacting Two-Dimensional Dirac Fermions
• P-wave superfluidity of atomic lattice fermions
• Pairing and density-wave phases in Boson-Fermion mixtures at fixed filling
• Unconventional superconducting phases on a two-dimensional extended Hubbard model
• Interactions mediated by atoms, photons, electrons, and excitons
• Magnetoplasmon Fano resonance in Bose-Fermi mixtures
• Topological quantum phase transitions of attractive spinless fermions in a honeycomb lattice
• Competing Superconducting States for Ultracold Atoms in Optical Lattices with Artificial Staggered Magnetic Field
• The Pairing of Spin-orbit Coupled Fermi Gas in Optical Lattice
• Stable p-wave resonant two-dimensional Fermi-Bose dimers
• Enhanced visibility of the Fulde-Ferrell-Larkin-Ovchinnikov state in one dimensional Bose-Fermi mixtures near the immiscibility point
• Exotic Superconductivity Through Bosons in a Dynamical Cluster Approximation
• Mixtures of correlated bosons and fermions: Dynamical mean-field theory for normal and condensed phases
• Collective excitations of a Bose-Einstein condensate of hard-core bosons and their mediated interactions: from two-body bound states to mediated superfluidity
• Coulomb drag of excitons in Bose-Fermi mixtures
• Superfluid-Insulator Transition and Fermion Pairing in Bose-Fermi Mixtures
• Generating coherent phonon waves in narrow-band materials: a twisted bilayer graphene phaser
• Phases of Bosons or Fermions in confined optical lattices
• Thermodynamical approaches to efficient sympathetic cooling in ultracold Fermi-Bose atomic mixtures
• Correlated Phases of Population Imbalanced Fermi-Fermi Mixtures on an Optical Lattice
• Heteronuclear quantum gas mixtures
• Bose-Fermi solid and its quantum melting in an one-dimensional optical lattice
• Chiral to helical Majorana fermion transition in a $p$-wave superconductor
• p-wave superfluidity in mixtures of ultracold Fermi and spinor Bose gases
• Renormalization group approach to spinor Bose-Fermi mixtures in a shallow optical lattice
• Quantum Monte Carlo and perturbative study of two-dimensional Bose-Fermi mixtures
• Competing Orders in a Dipolar Bose-Fermi Mixture on a Square Optical Lattice: Mean-Field Perspective
• BCS and BEC p-wave pairing in Bose-Fermi gases
• Superfluid density reduction and spin-imbalanced pairing in a fermionic superfluid due to dynamical boson exchange
• Composite polaron formed on surface of two-dimensional lattice system in weak coupling regime
• The roton-assisted chiral p-wave superfluid in a quasi-two-dimensional dipolar Bose-Fermi quantum gas mixture
• Superfluidity of identical fermions in an optical lattice: atoms and polar molecules