High-fidelity detection of large-scale atom arrays in an optical lattice

R Tao, M Ammenwerth, F Gyger, I Bloch, J Zeiher - Physical Review Letters, 2024 - APS
Recent advances in quantum simulation based on neutral atoms have largely benefited from
high-resolution, single-atom sensitive imaging techniques. A variety of approaches have …

Long-lived circular Rydberg qubits of alkaline-earth atoms in optical tweezers

C Hölzl, A Götzelmann, E Pultinevicius, M Wirth… - Physical Review X, 2024 - APS
Coherence time and gate fidelities in Rydberg atom quantum simulators and computers are
fundamentally limited by the Rydberg state lifetime. Circular Rydberg states are highly …

Coherent control of the fine-structure qubit in a single alkaline-earth atom

G Unnikrishnan, P Ilzhöfer, A Scholz, C Hölzl… - Physical Review Letters, 2024 - APS
We report on the first realization of a novel neutral atom qubit encoded in the spin-orbit
coupled metastable states P 0 3 and P 2 3 of a single Sr 88 atom trapped in an optical …

Erasure-cooling, control, and hyper-entanglement of motion in optical tweezers

AL Shaw, P Scholl, R Finkelstein, RBS Tsai… - arXiv preprint arXiv …, 2023 - arxiv.org
We demonstrate how motional degrees of freedom in optical tweezers can be used as
quantum information carriers. To this end, we first implement a species-agnostic cooling …

Quadrupole Coupling of Circular Rydberg Qubits to Inner Shell Excitations

M Wirth, C Hölzl, A Götzelmann, E Pultinevicius… - Physical Review Letters, 2024 - APS
Divalent atoms provide excellent means for advancing control in Rydberg atom-based
quantum simulation and computing due to the second optically active valence electron …

Optimal control transport of neutral atoms in optical tweezers at finite temperature

A Pagano, D Jaschke, W Weiss, S Montangero - Physical Review Research, 2024 - APS
The transport of neutral atoms in Rydberg quantum computers is a crucial step for the initial
arrangement of the grid as well as the dynamic connectivity, recently successfully …

Finite-temperature Rydberg arrays: Quantum phases and entanglement characterization

N Reinić, D Jaschke, D Wanisch, P Silvi… - Physical Review …, 2024 - APS
As one of the most prominent platforms for analog quantum simulators, Rydberg atom arrays
are a promising tool for exploring quantum phases and transitions. While the ground-state …

High-tolerance antiblockade gates using optimal pulse drivings

WX Li, JL Wu, SL Su, J Qian - Physical Review A, 2024 - APS
Position error is treated as the leading obstacle that prevents Rydberg antiblockade gates
from being experimentally realizable, because of the inevitable fluctuations in the relative …

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 …

Avalanche terahertz photon detection in a Rydberg tweezer array

C Nill, A Cabot, A Trautmann, C Groß, I Lesanovsky - Physical Review Letters, 2024 - APS
We propose a protocol for the amplified detection of low-intensity terahertz radiation using
Rydberg tweezer arrays. The protocol offers single photon sensitivity together with a low …