Topological physics of non-Hermitian optics and photonics: a review

H Wang, X Zhang, J Hua, D Lei, M Lu, Y Chen - Journal of Optics, 2021 - iopscience.iop.org
The notion of non-Hermitian optics and photonics rooted in quantum mechanics and
photonic systems has recently attracted considerable attention ushering in tremendous …

Midcircuit measurements on a single-species neutral alkali atom quantum processor

TM Graham, L Phuttitarn, R Chinnarasu, Y Song… - Physical Review X, 2023 - APS
We demonstrate midcircuit measurements in a neutral atom array by shelving data qubits in
protected hyperfine-Zeeman substates while nondestructively measuring an ancilla qubit …

Alkaline-earth atoms in optical tweezers

A Cooper, JP Covey, IS Madjarov, SG Porsev… - Physical Review X, 2018 - APS
We demonstrate single-shot imaging and narrow-line cooling of individual alkaline-earth
atoms in optical tweezers; specifically, strontium trapped in 515.2-nm light. Our approach …

Repetitive Readout and Real-Time Control of Nuclear Spin Qubits in Atoms

W Huie, L Li, N Chen, X Hu, Z Jia, WKC Sun, JP Covey - PRX Quantum, 2023 - APS
We demonstrate high-fidelity repetitive measurements of nuclear spin qubits in an array of
neutral ytterbium-171 (171 Yb) atoms. We show that the qubit state can be measured with a …

A strontium quantum-gas microscope

S Buob, J Höschele, V Makhalov, A Rubio-Abadal… - PRX Quantum, 2024 - APS
The development of quantum-gas microscopes has brought novel ways of probing quantum
degenerate many-body systems at the single-atom level. Until now, most of these setups …

2000-times repeated imaging of strontium atoms in clock-magic tweezer arrays

JP Covey, IS Madjarov, A Cooper, M Endres - Physical review letters, 2019 - APS
We demonstrate single-atom resolved imaging with a survival probability of 0.99932 (8) and
a fidelity of 0.99991 (1), enabling us to perform repeated high-fidelity imaging of single …

Narrow-line imaging of single strontium atoms in shallow optical tweezers

A Urech, IHA Knottnerus, RJC Spreeuw… - Physical Review …, 2022 - APS
Single strontium atoms held in optical tweezers have so far only been imaged using the
broad 1 S 0-1 P 1 transition. For Yb, use of the narrow (183-kHz wide) 1 S 0-3 P 1 transition …

Differential polarizability of the strontium intercombination transition at 1064.7 nm

R Journet, F Faisant, S Lee, M Cheneau - Physical Review A, 2024 - APS
We measure the scalar, vector, and tensor components of the differential dynamic
polarizability of the strontium intercombination transition at 1064.7 nm. We compare the …

Molecular cooling via Sisyphus processes

D Comparat - Physical Review A, 2014 - APS
We present a study of Sisyphus cooling of molecules: The scattering of a single photon
removes a substantial amount of the molecular kinetic energy and an optical pum** step …

Sisyphus optical lattice decelerator

CC Chen, S Bennetts, R González Escudero… - Physical Review A, 2019 - APS
Leading tests of the Standard Model, like measurements of the electron electric dipole
moment or of matter-antimatter asymmetry, are built upon our ability to laser-cool atoms and …