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Spatially resolved single photon detection with a quantum sensor array
journal contribution
posted on 2015-07-10, 13:29 authored by Alexandre ZagoskinAlexandre Zagoskin, Richard D. Wilson, Mark EverittMark Everitt, Sergey SavelievSergey Saveliev, D Gulevich, J. Allen, V.K. Dubrovich, E. Il'ichevWe 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. Weshow that the effects of local noise (e.g., fluctuations affecting the elements of the array) are suppressed relative to the signal from the
spatially coherent field of the incoming photon as ˜1/√N , where N is the number of array elements. The realisation of this approach in the microwave range would be especially useful and is within the reach of
current experimental techniques.
Funding
AMZ, RDW, ME and SS were supported by the John Templeton Foundation. EI acknowledges the financial support of the EU through the project iQIT.
History
School
- Science
Department
- Physics
Published in
SCIENTIFIC REPORTSVolume
3Pages
? - ? (6)Citation
ZAGOSKIN, A.M. et al, 2013. Spatially resolved single photon detection with a quantum sensor array. Scientific Reports, 3, article 3464.Publisher
Nature Publishing GroupVersion
- VoR (Version of Record)
Publisher statement
This work is licensed under a Creative Commons AttributionNonCommercial-ShareAlike 3.0 Unported license. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0Publication date
2013Notes
This article was published in the journal Scientific Reports [Nature Publishing Group]. This work is licensed under a Creative Commons AttributionNonCommercial-ShareAlike 3.0 Unported license.ISSN
2045-2322Publisher version
Language
- en