Multi-qubit gates and Schrödinger cat states in an optical clock

A Cao, WJ Eckner, T Lukin Yelin, AW Young… - Nature, 2024 - nature.com
Many-particle entanglement is a key resource for achieving the fundamental precision limits
of a quantum sensor. Optical atomic clocks, the current state of the art in frequency precision …

Rearrangement of individual atoms in a 2000-site optical-tweezer array at cryogenic temperatures

G Pichard, D Lim, É Bloch, J Vaneecloo, L Bourachot… - Physical Review …, 2024 - APS
We report on the trap** of single rubidium atoms in large arrays of optical tweezers
comprising up to 2088 sites in a cryogenic environment at 6 K. Our approach relies on the …

Optimized measurement-free and fault-tolerant quantum error correction for neutral atoms

S Veroni, M Müller, G Giudice - Physical Review Research, 2024 - APS
A major challenge in performing quantum error correction (QEC) is implementing reliable
measurements and conditional feed-forward operations. In quantum computing platforms …

Fault-tolerant optical interconnects for neutral-atom arrays

J Sinclair, J Ramette, B Grinkemeyer… - arxiv preprint arxiv …, 2024 - arxiv.org
We analyze the use of photonic links to enable large-scale fault-tolerant connectivity of
locally error-corrected modules based on neutral atom arrays. Our approach makes use of …

Site-selective cavity readout and classical error correction of a 5-bit atomic register

B Hu, J Sinclair, E Bytyqi, M Chong, A Rudelis… - arxiv preprint arxiv …, 2024 - arxiv.org
Optical cavities can provide fast and non-destructive readout of individual atomic qubits;
however, scaling up to many qubits remains a challenge. Using locally addressed excited …

Fermion-qubit fault-tolerant quantum computing

A Schuckert, E Crane, AV Gorshkov, M Hafezi… - arxiv preprint arxiv …, 2024 - arxiv.org
Simulating the dynamics of electrons and other fermionic particles in quantum chemistry,
material science, and high-energy physics is one of the most promising applications of fault …

Multi-reservoir enhanced loading of tweezer atom arrays

X Yan, C He, K Wen, Z Ren, PTF Wong, E Hajiyev… - Physical Review …, 2025 - APS
We introduce a method for improved loading into a single-atom optical tweezer array,
utilizing iterative loading with multiple reservoir tweezers. Demonstrated with dual …

Fast entangling gates for Rydberg atoms via resonant dipole-dipole interaction

G Giudici, S Veroni, G Giudice, H Pichler… - arxiv preprint arxiv …, 2024 - arxiv.org
The advent of digital neutral-atom quantum computers relies on the development of fast and
robust protocols for high-fidelity quantum operations. In this work, we introduce a novel …

Cooperative Effects in Thin Dielectric Layers: Long-Range Dicke Superradiance

A Kundu, R Trivedi, A Javadi, H Alaeian - arxiv preprint arxiv:2501.14913, 2025 - arxiv.org
The realization and control of collective effects in quantum emitter ensembles have
predominantly focused on small, ordered systems, leaving their extension to larger, more …

Scaling of Computational Order Parameters in Rydberg Atom Graph States

Z Qin, VW Scarola - arxiv preprint arxiv:2409.05941, 2024 - arxiv.org
Graph states are computationally powerful quantum states with many applications including
use as resource states for measurement-based quantum computing (MBQC). We …