Multipolar Fermi-surface deformation in a Rydberg-dressed Fermi gas with long-range anisotropic interactions

Abstract

We study theoretically the deformation of the Fermi surface (FS) of a three-dimensional gas of Rydberg-dressed ${}^6$Li atoms. The laser dressing to high-lying Rydberg $D$ states results in angle-dependent soft-core-shaped interactions whose anisotropy is described by multiple spherical harmonics. We show that this can drastically modify the shape of the FS and that its deformation depends on the interplay between the Fermi momentum $k_F$ and the reciprocal momentum $\bar{k}$ corresponding to the characteristic soft-core radius of the dressing-induced potential. When $k_F<\bar{k}$, the dressed interaction stretches a spherical FS into an ellipsoid. When $k_F\gtrsim \bar{k}$, complex deformations are encountered which exhibit multipolar characteristics. We analyze the formation of Cooper pairs around the deformed FS and show that they occupy large orbital angular momentum states ($p$, $f$, and $h$ wave) coherently. Our study demonstrates that Rydberg dressing to high angular momentum states may pave a route toward the investigation of unconventional Fermi gases and multiwave superconductivity.

arXiv comment5 pages, 5 figures; SM: 7 pages, 5 figures

References in corpus (70)

• Quantum information with Rydberg atoms
• Theory of ultracold Fermi gases
• A High Phase-Space-Density Gas of Polar Molecules
• Electronic Liquid Crystal Phases of a Doped Mott Insulator
• Condensed Matter Theory of Dipolar Quantum Gases
• Experimental realization of a symmetry protected topological phase of interacting bosons with Rydberg atoms
• Three-dimensional Roton-Excitations and Supersolid formation in Rydberg-excited Bose-Einstein Condensates
• ARC: An open-source library for calculating properties of alkali Rydberg atoms
• Quantum degenerate dipolar Fermi gas
• Many-body interferometry of a Rydberg-dressed spin lattice
• Strongly correlated gases of Rydberg-dressed atoms: quantum and classical dynamics
• A superfluid-droplet crystal and a free-space supersolid in a dipole-blockaded gas
• Unconventional Superconductivity
• Homogeneous Atomic Fermi Gases
• Coherent many-body spin dynamics in a long-range interacting Ising chain
• Stable Topological Superfluid Phase of Ultracold Polar Fermionic Molecules
• Controlling atom-atom interaction at ultralow temperatures by dc electric fields
• Designing Frustrated Quantum Magnets with Laser-Dressed Rydberg Atoms
• Probing quench dynamics across a quantum phase transition into a 2D Ising antiferromagnet
• Collective many-body interaction in Rydberg dressed atoms
• Interactions Between Rydberg-Dressed Atoms
• Quantum magnetism and topological ordering via enhanced Rydberg-dressing near Förster-resonances
• Dipolar Quantum Mixtures of Erbium and Dysprosium Atoms
• Defect-induced supersolidity with soft-core bosons
• Quantum phases of a Two-Dimensional Dipolar Fermi Gas
• Transverse-Field Ising Dynamics in a Rydberg-Dressed Atomic Gas
• Phase space deformation of a trapped dipolar Fermi gas
• Fermion Superfluids of Non-Zero Orbital Angular Momentum near Resonance
• Quench Dynamics of a Fermi Gas with Strong Non-Local Interactions
• Observation of Fermi surface deformation in a dipolar quantum gas
• ARC 3.0: An expanded Python toolbox for atomic physics calculations
• Correlated Exciton Transport in Rydberg-Dressed-Atom Spin Chains
• Prospects for p-wave paired BCS states of fermionic atoms
• Density wave instability in a 2D dipolar Fermi gas
• Ferro-Nematic ground state of the dilute dipolar Fermi gas
• Anisotropic Fermi liquid theory of the ultra cold fermionic polar molecules: Landau parameters and collective modes
• Realization of a Strongly Interacting Fermi Gas of Dipolar Atoms
• Quantum Quench and Prethermalization Dynamics in A Two-Dimensional Fermi Gas with Long-range Interactions
• Dynamical properties of dipolar Fermi gases
• Computing the Self-Consistent Field in Kohn-Sham Density Functional Theory
• Zero Sound in Dipolar Fermi Gases
• Realization of a Rydberg-dressed Ramsey interferometer and electrometer
• Exotic topological density waves in cold atomic Rydberg fermions
• Kohn-Luttinger mechanism driven exotic topological superconductivity on the Penrose lattice
• Weyl Superfluidity in a Three-dimensional Dipolar Fermi Gas
• Hartree-Fock-Bogoliubov Theory of Dipolar Fermi Gases
• Phase-Imprinting of Bose-Einstein Condensates with Rydberg Impurities
• Probing the interaction between Rydberg-dressed atoms through interference
• Fermi surface of a trapped dipolar Fermi gas
• $F$-wave pairing of cold atoms in optical lattices
• Supersolidity of lattice Bosons immersed in strongly correlated Rydberg dressed atoms
• Exotic Superconducting Phases of Ultracold Atom Mixtures on Triangular Lattices
• Emergent devil's staircase without particle-hole symmetry in Rydberg quantum gases with competing attractive and repulsive interactions
• Novel $p$-wave superfluids of fermionic polar molecules
• Quench dynamics of Rydberg-dressed bosons on two-dimensional square lattices
• Thermodynamics and coherence of a trapped dipolar Fermi gas
• Many-body chiral edge currents and sliding phases of atomic spinwaves in momentum-space lattice
• Direct observation of the Fermi surface in an ultracold atomic gas
• Discovery of an Excited Pair State in Superfluid 3He
• Harmonically trapped dipolar fermions in a two-dimensional square lattice
• Ultra-cold Fermi gases with resonant dipole-dipole interaction
• P-wave Superfluidity by Blockade Effects in a Rydberg-Dressed Fermi Gas
• Emergence of Metallic Quantum Solid Phase in a Rydberg-Dressed Fermi Gases
• Frustrated Cooper pairing and the $f$-wave supersolidity
• Topological $p_x+i{p}_y$ Superfluid Phase of a Dipolar Fermi Gas in a 2D Optical Lattice
• Pairing Symmetry in the Anisotropic Fermi Superfluid under p-wave Feshbach Resonance
• Supersolidity of a dipolar Fermi gas in a cubic optical lattice
• $f$-wave superfluidity from repulsive interaction in Rydberg-dressed Fermi gas
• Phase-diagram and dynamics of Rydberg-dressed fermions in two-dimensions
• Devil's staircases without particle-hole symmetry

Cited by in corpus (2)

• Two-dimensional Paired Topological Superfluids of Rydberg Fermi Gases
• Pairing from repulsion in a two-dimensional Fermi gas with soft-core interactions