UCL Discovery Stage
UCL home » Library Services » Electronic resources » UCL Discovery Stage

Persistent Non-Gaussian Correlations in Out-of-Equilibrium Rydberg Atom Arrays

Deger, Aydin; Daniel, Aiden; Papić, Zlatko; Pachos, Jiannis K; (2023) Persistent Non-Gaussian Correlations in Out-of-Equilibrium Rydberg Atom Arrays. PRX Quantum , 4 (4) , Article 040339. 10.1103/PRXQuantum.4.040339. Green open access

[thumbnail of PRXQuantum.4.040339.pdf]
Preview
Text
PRXQuantum.4.040339.pdf - Published Version

Download (1MB) | Preview

Abstract

Gaussian correlations emerge in a large class of many-body quantum systems quenched out of equilibrium, as demonstrated in recent experiments on coupled one-dimensional superfluids [Schweigler et al., Nat. Phys. 17, 559 (2021)]. Here we present a mechanism by which an initial state of a Rydberg atom array can retain persistent non-Gaussian correlations following a global quench. This mechanism is based on an effective kinetic blockade rooted in the ground state symmetry of the system, which prevents thermalizing dynamics under the quench Hamiltonian. We propose how to observe this effect with Rydberg atom experiments and we demonstrate its resilience regarding several types of experimental error. These long-lived non-Gaussian states may have practical applications as quantum memories or stable resources for quantum information protocols due to the protected non-Gaussianity away from equilibrium.

Type: Article
Title: Persistent Non-Gaussian Correlations in Out-of-Equilibrium Rydberg Atom Arrays
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PRXQuantum.4.040339
Publisher version: http://dx.doi.org/10.1103/prxquantum.4.040339
Language: English
Additional information: Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license, https://creativecommons.org/licenses/by/4.0/. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy
URI: https://discovery-pp.ucl.ac.uk/id/eprint/10184835
Downloads since deposit
468Downloads
Download activity - last month
Download activity - last 12 months
Downloads by country - last 12 months

Archive Staff Only

View Item View Item