Nondestructive Cooling of an Atomic Quantum Register via State-Insensitive Rydberg Interactions
Year: 2019
Type: article
Abstract: We propose a protocol for sympathetically cooling neutral atoms without destroying the quantum information stored in their internal states. This is achieved by designing state-insensitive Rydberg interactions between the data-carrying atoms and cold auxiliary atoms. The resulting interactions give rise to an effective phonon coupling, which leads to the transfer of heat from the data atoms to the auxiliary atoms, where the latter can be cooled by conventional methods. This can be used to extend the lifetime of quantum storage based on neutral atoms and can have applications for long quantum computations. The protocol can also be modified to realize state-insensitive interactions between the data and the auxiliary atoms but tunable and nontrivial interactions among the data atoms, allowing one to simultaneously cool and simulate a quantum spin model.
Source: Physical Review Letters
Institutions: Joint Quantum Institute, University of Maryland, College Park, Joint Center for Quantum Information and Computer Science, National Institute of Standards and Technology, Joint Institute for Laboratory Astrophysics, University of Colorado Boulder, Austrian Academy of Sciences, Universität Innsbruck, Institute for Quantum Optics and Quantum Information Innsbruck
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Funders: National Science Foundation, U.S. Department of Energy, Achievement Rewards for College Scientists Foundation, National Institute of Standards and Technology, Natural Sciences and Engineering Research Council of Canada, Fonds de recherche du Québec – Nature et technologies, Air Force Office of Scientific Research, Army Research Office, Army Research Laboratory
OpenAlex ID: W2964197261