Spin-orbit coupled two-electron Fermi gases of ytterbium atoms

Abstract

We demonstrate all-optical implementation of spin-orbit coupling (SOC) in a two-electron Fermi gas of ${}^{173}$Yb atoms by coupling two hyperfine ground states with a narrow optical transition. Due to the SU($N$) symmetry of the ${}^1$S${}_0$ ground-state manifold which is insensitive to external magnetic fields, an optical AC Stark effect is applied to split the ground spin states, which exhibits a high stability compared with experiments on alkali and lanthanide atoms, and separate out an effective spin-1/2 subspace from other hyperfine levels for the realization of SOC. The dephasing spin dynamics when a momentum-dependent spin-orbit gap being suddenly opened and the asymmetric momentum distribution of the spin-orbit coupled Fermi gas are observed as a hallmark of SOC. The realization of all-optical SOC for ytterbium fermions should offer a new route to a long-lived spin-orbit coupled Fermi gas and greatly expand our capability in studying novel spin-orbit physics with alkaline-earth-like atoms.

arXiv comment5 pages, 4 figures

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• Realization of SU(2)*SU(6) Fermi System
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• Tunable Spin-Orbit Coupling via Strong Driving in Ultracold Atom Systems
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• Spin-orbit coupled fermions in an optical lattice clock
• Artificial gauge fields in materials and engineered systems
• Observation of symmetry-protected topological band with ultracold fermions
• Observation of nodal-line semimetal with ultracold fermions in an optical lattice
• Two-dimensional non-Hermitian skin effect in an ultracold Fermi gas
• Realization of Qi-Wu-Zhang model in spin-orbit-coupled ultracold fermions
• Experimental realization of a superfluid stripe phase in a spin-orbit-coupled Bose-Einstein condensate enabled by momentum-space hopping
• Floquet chiral magnetic effect
• Non-Abelian adiabatic geometric transformations in a cold Strontium gas
• Momentum-Space Josephson Effects
• Interaction Control of Ultracold Alkaline-Earth Atoms
• Topological Gapless Matters in Three-dimensional Ultracold Atomic Gases
• Non-integrable dynamics of matter-wave solitons in a density-dependent gauge theory
• Symmetry-protected topological states for interacting fermions in alkaline-earth-like atoms
• Selective insulators and anomalous responses in correlated fermions with synthetic extra dimensions
• Superfluid-quasicrystal in a Bose-Einstein condensate
• Evidence for Bosonization in a three-dimensional gas of SU($N$) fermions
• Spin-orbit coupling and topological phases for ultracold atoms
• Wave-packet Dynamics in Synthetic Non-Abelian Gauge Fields
• Multipolar Kondo Effect in ${}^1$S${}_0$-${}^3$P${}_2$ Mixture of ${}^{173}$Yb Atoms
• Supersolid Stripes Enhanced by Correlations in a Raman Spin-Orbit-Coupled System
• Collective excitations in two-dimensional SU($N$) Fermi gases with tunable spin
• Tail-free self-accelerating solitons and vortices
• Observation of Floquet band topology change in driven ultracold Fermi gases
• Experimental realization of a non-magnetic one-way spin switch
• Large-$N$ Chern insulators: lattice field theory and quantum simulation approaches to correlation effects in the quantum anomalous Hall effect
• Repulsive polarons in alkaline-earth(-like) atoms across an orbital Feshbach resonance
• Spin-orbital-angular-momentum-coupled quantum gases
• Resonant dynamics of strongly interacting SU($n$) fermionic atoms in a synthetic flux ladder
• Effective statistical fringe removal algorithm for high-sensitivity imaging of ultracold atoms
• Experimental realization of a fermionic spin-momentum lattice
• Topological Fulde-Ferrell states in alkaline-earth-metal-like atoms near an orbital Feshbach resonance
• Localization on a synthetic Hall cylinder
• Topological chiral currents in the Gross-Neveu model extension
• Adiabatic spin-dependent momentum transfer in an SU(N) degenerate Fermi gas
• Symmetry-Protected Topological Phase for Spin-Tensor-Momentum-Coupled Ultracold Atoms
• Tuning Feshbach resonance in cold atomic gases with inter-channel coupling
• Observing a topological phase transition with deep neural networks from experimental images of ultracold atoms
• Double resonance of Raman transitions in a degenerate Fermi gas
• Two-body bound state of ultracold Fermi atoms with two-dimensional spin-orbit coupling
• Fractional topological insulator precursors in spin-orbit fermion ladders
• Active control of a diode laser with injection locking
• Two types of dark solitons in a spin-orbit-coupled Fermi gas
• Spin-orbit-coupled Bose-Einstein condensates of rotating polar molecules
• K-matrix formulation of two-particle scattering in a wave guide in the presence of one-dimensional spin-orbit coupling
• Topological spin-orbit-coupled fermions beyond rotating wave approximation
• Synthetic spin-orbit coupling for the multispin models in optical lattices
• Large-momentun tail of one-dimensional Fermi gases with spin-orbit coupling
• Quantum Spin Dynamics in a Normal Bose Gas with Spin-orbit Coupling
• Generating topological optical flux lattices for ultracold atoms by modulated Raman and radio-frequency couplings
• Topological phases protected by projective space-time inversion symmetry in alkaline-earth-metal-like atoms
• Two atoms in a harmonic trap with spin-orbital-angular-momentum coupling
• Heuristic machinery for thermodynamic studies of SU(N) fermions with neural networks
• Orbital Optical Raman Lattice
• The algebraic spin liquid in the SU(6) Heisenberg model on the kagome lattice