Noise-Tolerant Object Detection and Ranging Using Quantum Correlations
- URL: http://arxiv.org/abs/2111.04062v4
- Date: Tue, 14 Dec 2021 14:03:53 GMT
- Title: Noise-Tolerant Object Detection and Ranging Using Quantum Correlations
- Authors: Hashir Kuniyil, Helin Ozel, Hasan Y{\i}lmaz, Kadir Durak
- Abstract summary: We introduce the advantage of using not only time correlations but also polarization correlations in photon pairs in the detection of an object embedded in a noisy background.
We found that the joint measurement of correlated pairs allows distinguishing the signal from the noise photons and that leads to an improved signal-to-noise ratio.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: Imaging, detection and ranging of objects in the presence of significant
background noise is a fundamental challenge in optical sensing. Overcoming the
limitations imposed in conventional methods, quantum light sources show higher
resistance against noise in a time-correlation-based quantum illumination.
Here, we introduce the advantage of using not only time correlations but also
polarization correlations in photon pairs in the detection of an object that is
embedded in a noisy background. In this direction, a time- and
polarization-correlated photon pair source using the spontaneous parametric
down-conversion process is exploited. We found that the joint measurement of
correlated pairs allows distinguishing the signal from the noise photons and
that leads to an improved signal-to-noise ratio. Our comparative study revealed
that using polarization correlations in addition to time correlations provides
improved noise rejection. Furthermore, we show that polarization correlation
allows undoing the detector limitation where high background often leads to
detector saturation.
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