Spectroscopic observation of SU(N)-symmetric interactions in Sr orbital magnetism

Abstract

SU(N) symmetry can emerge in a quantum system with N single-particle spin states when spin is decoupled from inter-particle interactions. So far, only indirect evidence for this symmetry exists, and the scattering parameters remain largely unknown. Here we report the first spectroscopic observation of SU(N=10) symmetry in Sr-87 using the state-of-the-art measurement precision offered by an ultra-stable laser. By encoding the electronic orbital degree of freedom in two clock states, while keeping the system open to 10 nuclear spin sublevels, we probe the non-equilibrium two-orbital SU(N) magnetism via Ramsey spectroscopy of atoms confined in an array of two-dimensional optical traps. We study the spin-orbital quantum dynamics and determine all relevant interaction parameters. This work prepares for using alkaline-earth atoms as test-beds for iconic orbital models.

4 figures, 1 tables

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Cited by in corpus (125)

• Systematic evaluation of an atomic clock at 2e-18 total uncertainty
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• Ultracold Fermi Gases with Emergent SU(N) Symmetry
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• Quantum gas microscopy for single atom and spin detection
• Quantum correlations and entanglement in far-from-equilibrium spin systems
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• Fermion-qudit quantum processors for simulating lattice gauge theories with matter
• Hamiltonian engineering of spin-orbit coupled fermions in a Wannier-Stark optical lattice clock
• Universal Kardar-Parisi-Zhang dynamics in integrable quantum systems
• Role of atoms in atomic gravitational-wave detectors
• Core-Shell Magneto-Optical Trap for Alkaline-Earth-Metal-Like Atoms
• Phase diagrams of one-dimensional half-filled two-orbital SU(N) cold fermions systems
• Quantum Monte Carlo simulation of thermodynamic properties of SU(2N) ultracold fermions in optical lattices
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• State-dependent interactions in ultracold ${}^{174}$Yb probed by optical clock spectroscopy
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• Flag manifold sigma models: spin chains and integrable theories
• Strain and pseudo-magnetic fields in optical lattices from density-assisted tunneling
• Spiral spin textures of bosonic Mott insulator with SU(3) spin-orbit coupling
• Exact eigenstates of extended SU($N$) Hubbard models: Generalizations of $\eta$-pairing states with $N$-particle off-diagonal long-range order
• Polarons and Molecules in a Fermi Gas with Orbital Feshbach Resonance
• Rigorous results on the ground state of the attractive SU($N$) Hubbard model
• Structure of Spin Correlations in High Temperature SU($N$) Quantum Magnets
• Observation of a narrow inner-shell orbital transition in atomic erbium at 1299 nm
• Electric dipole matrix elements for the $6p{}^2{P}_J\to 7s{}^2{S}_{1/2}$ transition in atomic cesium
• $Abinitio$ derivation of lattice gauge theory dynamics for cold gases in optical lattices
• Quantum engineering of atomic phase-shifts in optical clocks
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• Engineering infinite-range SU($n$) interactions with spin-orbit-coupled fermions in an optical lattice
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• Atomic properties of actinide ions with particle-hole configurations
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• Detecting high-dimensional entanglement in cold-atom quantum simulators
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• Symmetry-protected topological phases in the SU(N) Heisenberg spin chain: a Majorana-fermion approach
• Exotic pairing in 1D spin-3/2 atomic gases with $SO(4)$ symmetry
• Fermionic matter-wave quantum optics with cold-atom impurity models
• Interaction-induced exotic vortex states in an optical lattice clock with spin-orbit coupling
• Linear Flavor-Wave Analysis of SU(4)-Symmetric Tetramer Model with Population Imbalance
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• Spin-gap spectroscopy in a bosonic flux ladder
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• Cooperation of different exchange mechanisms in confined magnetic systems
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• Fluctuation-induced first-order superfluid transition in unitary $\mathrm{SU}(N)$ Fermi gases
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• Are degenerate groundstates induced by spontaneous symmetry breakings in quantum phase transitions?
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