Microscopic Control and Detection of Ultracold Strontium in Optical-Tweezer Arrays

By M. Norcia, A. Young, A. Kaufman. Physical Review X, 2018

216 citations recorded by the source corpus.

We demonstrate a set of tools for microscopic control of neutral strontium atoms. We report single-atom loading into an array of sub-wavelength scale optical tweezers, light-shift free control of a narrow-linewidth optical transition, three-dimensional ground-state cooling, and high-fidelity nondestructive imaging of single atoms on sub-wavelength spatial scales. Extending the microscopic control currently achievable in single-valence-electron atoms to species with more complex internal structure, like strontium, unlocks a wealth of opportunities in quantum information science, including tweezer-based metrology, new quantum computing architectures, and new paths to low-entropy many-body physics.

Subfields: Atomic and Molecular Physics, and Optics

View Paper: https://www.semanticscholar.org/paper/27b349a7edee00c24b2f07910a324a36d2cae971

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In Atomic and Molecular Physics, and Optics

Citations in the corpus

Ytterbium Nuclear-Spin Qubits in an Optical Tweezer Array (2021, methodology): “From these data, we calculate the average detection infidelity as the probability of misidentifying the presence of an atom averaged over the cases with and without an atom [24].”
Midcircuit Operations Using the omg Architecture in Neutral Atom Arrays (2023, background): “For the transition to j 3 P 1 ; F 0 ¼ 3 = 2 ; m F 0 ¼ − 1 = 2 i , we find an approximately 17° angle between the quantization axis and the tweezer light polarization (along x ), where the differential polarizability of the ground and excited states vanishes [48].”
Quantum simulation and computing with Rydberg-interacting qubits (2020, background): “While this type of detection is usually destructive, high-ﬁdelity lossless readout schemes for ground state qubits have also been demonstrated using state-selective ﬂuorescence in free space 40,84–86 , using cavity enhancement 87,88 , or using state-dependent potentials 89–91 .”
Many-body physics with individually controlled Rydberg atoms (2020, background): “Arrays of single Strontium [102–104] and Ytterbium [105] atoms have been reported recently.”