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Optimal distributed sensing in noisy environments

Sekatski, P. and Wölk, Sabine Esther and Dür, W. (2020) Optimal distributed sensing in noisy environments. Physical Review Research, 2, 023052. American Physical Society. doi: 10.1103/PhysRevResearch.2.023052. ISSN 2643-1564.

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Official URL: https://journals.aps.org/prresearch/abstract/10.1103/PhysRevResearch.2.023052


We consider distributed sensing of nonlocal quantities. We introduce quantum enhanced protocols to directly measure any (scalar) field with a specific spatial dependence by placing sensors at appropriate positions and preparing a spatially distributed entangled quantum state. Our scheme has optimal Heisenberg scaling and filters out noise with different spatial dependence than the signal. We provide states, spatial sensor configurations, and protocols to achieve optimal scaling. We explicitly demonstrate how to measure coefficients of spatial Taylor and Fourier series, and show that our approach can offer an exponential advantage as compared to strategies that do not make use of entanglement between different sites.

Item URL in elib:https://elib.dlr.de/134695/
Document Type:Article
Title:Optimal distributed sensing in noisy environments
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Sekatski, P.Departement Physik, Universität Basel, Klingelbergstraße 82, 4056 Basel, SwitzerlandUNSPECIFIED
Wölk, Sabine EstherSabine.Woelk (at) dlr.deUNSPECIFIED
Dür, W.Institut für Theoretische Physik, Universität Innsbruck, Technikerstraße 21a, 6020 Innsbruck, AustriaUNSPECIFIED
Date:17 April 2020
Journal or Publication Title:Physical Review Research
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1103/PhysRevResearch.2.023052
Page Range:023052
Publisher:American Physical Society
Keywords:Quantenmetrologie, Sensornetzwerke
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:other
DLR - Research area:Raumfahrt
DLR - Program:R - no assignment
DLR - Research theme (Project):R - no assignment
Location: Ulm
Institutes and Institutions:Institute of Quantum Technologies
Deposited By: Wölk, Sabine Esther
Deposited On:16 Mar 2021 13:31
Last Modified:19 Nov 2021 20:39

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