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Multidimensional quantum-enhanced target detection via spectrotemporal-correlation measurements

From National Research Council Canada

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DOIResolve DOI: https://doi.org/10.1103/PhysRevA.101.053808
AuthorSearch for: 1ORCID identifier: https://orcid.org/0000-0002-7227-4452; Search for: 1ORCID identifier: https://orcid.org/0000-0002-9101-6897; Search for: ; Search for: ORCID identifier: https://orcid.org/0000-0002-7811-2147; Search for: ORCID identifier: https://orcid.org/0000-0002-3227-8088; Search for: 1ORCID identifier: https://orcid.org/0000-0001-9561-8433; Search for: 1
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  1. National Research Council of Canada. Security and Disruptive Technologies
FormatText, Article
Abstract
In this work we investigate quantum-enhanced target detection in the presence of large background noise using multidimensional quantum correlations between photon pairs generated through spontaneous parametric down-conversion. Until now similar experiments have only utilized one of the photon pairs' many degrees of freedom such as temporal correlations and photon number correlations. Here, we utilized both temporal and spectral correlations of the photon pairs and achieved over an order of magnitude reduction to the background noise and in turn significant reduction to data acquisition time when compared to utilizing only temporal modes. We believe this work represents an important step in realizing a practical, real-time quantum-enhanced target detection system. The demonstrated technique will also be of importance in many other quantum sensing applications and quantum communications.
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  • Physical Review A 101, no. 5, 053808.
LanguageEnglish
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Record identifier7bbaaf3a-5eed-4c05-bdf2-fad85489f4db
Record created2020-07-02
Record modified2020-07-07
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