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Title: Spatially resolved single photon detection with a quantum sensor array
Authors: Zagoskin, Alexandre M.
Wilson, Richard D.
Everitt, Mark J.
Savel'ev, Sergey
Gulevich, Dmitry R.
Allen, J.
Dubrovich, V.K.
Il’ichev, E.
Issue Date: 2013
Publisher: Nature Publishing Group
Citation: ZAGOSKIN, A.M. ... et al, 2013. Spatially resolved single photon detection with a quantum sensor array. Scientific Reports, 3, 3464.
Abstract: We propose a method of resolving a spatially coherent signal, which contains on average just a single photon, against the background of local noise at the same frequency. The method is based on detecting the signal simultaneously in several points more than a wavelength apart through the entangling interaction of the incoming photon with the quantum metamaterial sensor array. The interaction produces the spatially correlated quantum state of the sensor array, characterised by a collective observable (e.g., total magnetic moment), which is read out using a quantum nondemolition measurement. The realisation of this approach in the microwave range would be especially useful and is within the reach of current experimental techniques.
Description: This is an Open Access article published by the Nature Publishing Group and distributed under the terms of the Creative Commons Attribution- NonCommercial-ShareAlike 3.0 Unported license. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0
Sponsor: AMZ, RDW, ME and SS were supported by the John Templeton Foundation. EI acknowledges the financial support of the EU through the project iQIT.
Version: Published
DOI: 10.1038/srep03464
URI: https://dspace.lboro.ac.uk/2134/18518
Publisher Link: http://dx.doi.org/10.1038/srep03464
ISSN: 2045-2322
Appears in Collections:Published Articles (Physics)

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