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arXiv · 1909.09664

Multidimensional quantum-enhanced target detection via spectro-temporal correlation measurements

Yingwen Zhang·Duncan England·Andrei Nomerotski·Peter Svihra·Steven Ferrante·Paul Hockett·Benjamin Sussman
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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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Yingwen Zhang, Duncan England, Andrei Nomerotski, Peter Svihra, Steven Ferrante, Paul Hockett, Benjamin Sussman. 2020-04-08. Multidimensional quantum-enhanced target detection via spectro-temporal correlation measurements. https://doi.org/10.1103/physreva.101.053808

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