p-Wave cold collisions in an optical lattice clock

Abstract

We study ultracold collisions in fermionic ytterbium by precisely measuring the energy shifts they impart on the atom's internal clock states. Exploiting Fermi statistics, we uncover p-wave collisions, in both weakly and strongly interacting regimes. With the higher density afforded by two-dimensional lattice confinement, we demonstrate that strong interactions can lead to a novel suppression of this collision shift. In addition to reducing the systematic errors of lattice clocks, this work has application to quantum information and quantum simulation with alkaline-earth atoms.

9 pages, 4 figures

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• A lattice of double wells for manipulating pairs of cold atoms
• Ultracold Gases of Ytterbium: Ferromagnetism and Mott States in an SU(6) Fermi System
• Quantum computing with alkaline earth atoms
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• Two-color photoassociation spectroscopy of ytterbium atoms and the precise determinations of s-wave scattering lengths
• Alkaline-Earth-Metal Atoms as Few-Qubit Quantum Registers
• Probing Interactions between Ultracold Fermions
• Decoherence and Collisional Frequency Shifts of Trapped Bosons and Fermions
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Cited by in corpus (46)

• An Optical Lattice Clock with Accuracy and Stability at the $10^{-18}$ Level
• An atomic clock with $10^{-18}$ instability
• Atomic clock performance beyond the geodetic limit
• A Fermi-degenerate three-dimensional optical lattice clock
• Observation of two-orbital spin-exchange interactions with ultracold SU(N)-symmetric fermions
• Ultracold Fermi Gases with Emergent SU(N) Symmetry
• Experimenting an optical second with strontium lattice clocks
• Frequency ratio of Yb and Sr clocks with $5\times 10^{-17}$ uncertainty at 150 s averaging time
• Comparison of Two Independent Sr Optical Clocks with 1e-17 Stability at 10^3 s
• A quantum many-body spin system in an optical lattice clock
• A high-performance optical lattice clock based on bosonic atoms
• High accuracy measure of atomic polarizability in an optical lattice clock
• Synthetic spin-orbit coupling in an optical lattice clock
• Far from equilibrium quantum magnetism with ultracold polar molecules
• Quantum correlations and entanglement in far-from-equilibrium spin systems
• Noise and instability of an optical lattice clock
• Dynamics of interacting fermions under spin-orbit coupling in an optical lattice clock
• Probing many-body interactions in an optical lattice clock
• Dynamics of correlations in two-dimensional quantum spin models with long-range interactions: A phase-space Monte-Carlo study
• Absolute frequency measurement of the 1S0 - 3P0 transition of 171Yb
• Inelastic collisions and density-dependent excitation suppression in a ${}^{87}$Sr optical lattice clock
• Spreading of correlations in exactly-solvable quantum models with long-range interactions in arbitrary dimensions
• Steady-state many-body entanglement of hot reactive fermions
• Hamiltonian engineering of spin-orbit coupled fermions in a Wannier-Stark optical lattice clock
• Cold collision shift cancelation and inelastic scattering in a Yb optical lattice clock
• Antiferromagnetic Interorbital Spin-Exchange Interaction of ${}^{171}$Yb
• Engineering spin squeezing in a 3D optical lattice with interacting spin-orbit-coupled fermions
• Demonstration of the nearly continuous operation of an ${}^{171}$Yb optical lattice clock for half a year
• Cavity-enhanced optical lattices for scaling neutral atom quantum technologies to higher qubit numbers
• Observation of unitary p-wave interactions between fermions in an optical lattice
• Modeling light shifts in optical lattice clocks
• Spin Dependent Collision of Ultracold Metastable Atoms
• Spin waves and Collisional Frequency Shifts of a Trapped-Atom Clock
• S-Wave Collisional Frequency Shift of a Fermion Clock
• Spin-polarized fermions with $p$-wave interactions
• Relativistic many-body calculations of van der Waals coefficients for Yb-Li and Yb-Rb dimers
• Cancellation of Collisional Frequency Shifts in Optical Lattice Clocks with Rabi Spectroscopy
• Mott insulators of ultracold fermionic alkaline earth atoms in three dimensions
• Excited-Band Coherent Delocalization for Improved Optical Lattice Clock Performance
• Quantum Monte Carlo study of the role of p-wave interactions in ultracold repulsive Fermi gases
• Rashba and Weyl spin-orbit coupling in an optical lattice clock
• Microscopic Study of the Coupled-Wire Construction and Plausible Realization in Spin-Dependent Optical Lattices
• Beyond the Spin Model Approximation for Ramsey Spectroscopy
• Effective multi-body SU($N$)-symmetric interactions of ultracold fermionic atoms on a 3-D lattice
• Decomposed description of Ramsey spectra under atomic interactions
• Elastic collision rates of spin-polarized fermions in two dimensions