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Momentum Entanglement for Atom Interferometry

Anders, Fabian and Idel, Alexander and Feldmann, Polina and Bondarenko, Dmytro and Loriani, Sina and Lange, Karsten and Peise, Jan and Gersemann, Matthias and Meyer-Hoppe, Bernd and Abend, Sven and Gaaloul, Naceur and Schubert, Christian and Schlippert, Dennis and Santos, Luis and Rasel, Ernst Maria and Klempt, Carsten (2021) Momentum Entanglement for Atom Interferometry. Physical Review Letters, 127 (14), p. 140402. American Physical Society. doi: 10.1103/PhysRevLett.127.140402. ISSN 0031-9007.

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Official URL: https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.127.140402

Abstract

Compared to light interferometers, the flux in cold-atom interferometers is low and the associated shot noise is large. Sensitivities beyond these limitations require the preparation of entangled atoms in different momentum modes. Here, we demonstrate a source of entangled atoms that is compatible with state-of-the-art interferometers. Entanglement is transferred from the spin degree of freedom of a Bose-Einstein condensate to well-separated momentum modes, witnessed by a squeezing parameter of -3.1 (8) dB. Entanglement-enhanced atom interferometers promise unprecedented sensitivities for quantum gradiometers or gravitational wave detectors.

Item URL in elib:https://elib.dlr.de/187279/
Document Type:Article
Title:Momentum Entanglement for Atom Interferometry
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Anders, FabianInstitut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, D-30167 Hannover, Germanyhttps://orcid.org/0000-0001-9100-0548
Idel, AlexanderInstitut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, D-30167 Hannover, Germanyhttps://orcid.org/0000-0003-1027-4833
Feldmann, PolinaInstitut für Theoretische Physik, Leibniz Universität Hannover, Appelstraße 2, D-30167 Hannover, Germanyhttps://orcid.org/0000-0002-9516-1899
Bondarenko, DmytroInstitut für Theoretische Physik, Leibniz Universität Hannover, Appelstraße 2, D-30167 Hannover, GermanyUNSPECIFIED
Loriani, SinaInstitut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover, Germanyhttps://orcid.org/0000-0001-6660-960X
Lange, KarstenInstitut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover, GermanyUNSPECIFIED
Peise, JanInstitut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover, GermanyUNSPECIFIED
Gersemann, MatthiasInstitut für Quantenoptik, Leibniz Universität Hannover, Hannover, GermanyUNSPECIFIED
Meyer-Hoppe, BerndInstitut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover, Germanyhttps://orcid.org/0000-0003-3600-767X
Abend, SvenInstitut für Quantenoptik, Leibniz Universität Hannover, Hannover, GermanyUNSPECIFIED
Gaaloul, NaceurInstitut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover, Germanyhttps://orcid.org/0000-0001-8233-5848
Schubert, ChristianChristian.Schubert (at) dlr.deUNSPECIFIED
Schlippert, DennisInstitut für Quantenoptik, Leibniz Universität Hannover, Germanyhttps://orcid.org/0000-0003-2168-1776
Santos, LuisInstitut für Theoretische Physik, Leibniz Universität Hannover, Appelstraße 2, D-30167 Hannover, GermanyUNSPECIFIED
Rasel, Ernst MariaInstitut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, D-30167 Hannover, GermanyUNSPECIFIED
Klempt, CarstenCarsten.Klempt (at) dlr.dehttps://orcid.org/0000-0003-2402-3162
Date:3 December 2021
Journal or Publication Title:Physical Review Letters
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:127
DOI :10.1103/PhysRevLett.127.140402
Page Range:p. 140402
Publisher:American Physical Society
ISSN:0031-9007
Status:Published
Keywords:Quantentechnologie, Atominterferometrie, Verschränkung
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Communication, Navigation, Quantum Technology
DLR - Research area:Raumfahrt
DLR - Program:R KNQ - Communication, Navigation, Quantum Technology
DLR - Research theme (Project):R - Quantum metrology under zero-gravity conditions (QUAMETUS)
Location: Hannover
Institutes and Institutions:Institute for Satellite Geodesy and Inertial Sensing > Quantum Limits of Metrology
Deposited By: Klempt, Carsten
Deposited On:11 Jul 2022 08:10
Last Modified:15 Jul 2022 09:08

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