Kondo Effect in Alkali-Earth Atomic Gases with Confinement-induced Resonance

Abstract

Alkali-earth atoms have a long-lived electronic excited state, which can be localized in the Fermi sea of ground state atoms by an external potential and serve as magnetic impurities, due to the spin-exchange interaction between the excited and the ground state atoms. This can give rise to the Kondo effect. However, in order to achieve this effect in current atomic gas experiment, it requires the Kondo temperature to be increased to a sizable portion of the Fermi temperature. In this letter we propose that the spin-exchange interaction can be strongly enhanced by utilizing the confinement-induced resonance (CIR). We analyze this system by the renormalization group approach, and we show that nearby a CIR, the Kondo temperature can indeed be increased to the regime attainable by current experiments.

9 pages, 7 figures

References in corpus (16)

• A one-dimensional liquid of fermions with tunable spin
• Spectroscopic observation of SU(N)-symmetric interactions in Sr orbital magnetism
• Observation of two-orbital spin-exchange interactions with ultracold SU(N)-symmetric fermions
• An SU(N) Mott insulator of an atomic Fermi gas realized by large-spin Pomeranchuk cooling
• Ultracold Fermi Gases with Emergent SU(N) Symmetry
• Nuclear Spin Effects in Optical Lattice Clocks
• Direct observation of coherent inter-orbital spin-exchange dynamics
• Observation of an orbital interaction-induced Feshbach resonance in 173-Yb
• Optical Lattice Induced Light Shifts in an Yb Atomic Clock
• A strongly interacting gas of two-electron fermions at an orbital Feshbach resonance
• Orbital Feshbach Resonance in Alkali-Earth Atoms
• Speckle Imaging of Spin Fluctuations in a Strongly Interacting Fermi Gas
• Dissipative Quantum Ising model in a cold atomic spin-boson mixture
• Transport measurement of the orbital Kondo effect with ultracold atoms
• Heavy-fermion valence-bond liquids in ultracold atoms: Cooperation of Kondo effect and geometric frustration
• Magnetic Impurity in a Tonks Gas of Fermions

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• Exploring the Kondo model in and out of equilibrium with alkaline-earth atoms
• Antiferromagnetic Interorbital Spin-Exchange Interaction of ${}^{171}$Yb
• Variational principle for quantum impurity systems in and out of equilibrium: application to Kondo problems
• Interaction Control of Ultracold Alkaline-Earth Atoms
• Symmetry-protected topological states for interacting fermions in alkaline-earth-like atoms
• Enhancing Kondo Coupling in Alkaline-Earth Atomic Gases with Confinement-induced Resonances in Mixed Dimensions
• Phase diagram and dynamics of the SU($\mathbf{N}$) symmetric Kondo lattice model
• Multipolar Kondo Effect in ${}^1$S${}_0$-${}^3$P${}_2$ Mixture of ${}^{173}$Yb Atoms
• Interorbital Interactions in an SU(2)xSU(6)-Symmetric Fermi-Fermi Mixture
• Observation of spin-exchange dynamics between itinerant and localized ${}^{171}\mathrm{Yb}$ atoms
• Quasiexact Kondo Dynamics of Fermionic Alkaline-Earth-Like Atoms at Finite Temperatures
• Repulsive polarons in alkaline-earth(-like) atoms across an orbital Feshbach resonance
• Topological Fulde-Ferrell states in alkaline-earth-metal-like atoms near an orbital Feshbach resonance
• Spin-orbit coupled correlated metal phase in Kondo lattices: an implementation with alkaline-earth atoms
• One-dimensional two-orbital SU(N) ultracold fermionic quantum gases at incommensurate filling: a low-energy approach
• Dissipative realization of Kondo models
• Quantum Defect Theory for Orbital Feshbach Resonance
• Symmetry-protected topological phase transition in one-dimensional Kondo lattice and its realization with ultracold atoms
• Tight-Binding Kondo Model and Spin-Exchange Collision Rate of Alkaline-Earth Atoms in a Mixed-Dimensional Optical Lattice
• Tuning Feshbach resonance in cold atomic gases with inter-channel coupling
• Efimov Enhanced Kondo Effect in Alkaline and Alkaline-Earth Atomic Gas Mixture
• Interaction-induced exotic vortex states in an optical lattice clock with spin-orbit coupling
• Simulating heavy fermion physics in optical lattice: Periodic Anderson model with harmonic trapping potential
• Orbital magnetism of ultracold fermionic gases in a lattice: dynamical mean-field approach
• Engineering the Kondo impurity problem with alkaline-earth atom arrays
• Synthetic topological Kondo insulator in a pumped optical cavity
• Kondo holes in strongly correlated impurity arrays: RKKY driven Kondo screening and hole-hole interactions
• Synthetic Hall tube of interacting fermions
• Asymmetric Conductivity of the Kondo Effect in Cold Atomic Systems
• Confinement-Induced Resonance with Weak Background Interaction
• Confinement-induced Resonance of Alkaline-earth-metal-like Atoms in Anisotropic Quasi-one-dimensional Traps
• Universal energy-dependent pseudopotential for the two-body problem of confined ultracold atoms
• Few-body solutions under spin-exchange interaction: magnetic bound state and the Kondo screening effect
• Kondo Effect in a Spin-3/2 Fermi Gas
• Microscopic theory of the Hubbard interaction in low-dimensional optical lattices
• Topological phases protected by projective space-time inversion symmetry in alkaline-earth-metal-like atoms
• Laser Manipulation of Spin-Exchange Interaction Between Alkaline-Earth Atoms in ${}^1$S${}_0$ and ${}^3$P${}_2$ States
• Bosonic Peierls state emerging from the one-dimensional Ising-Kondo interaction