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Thresholded Quantum LIDAR: Exploiting Photon-Number-Resolving Detection.

Lior Cohen¹, Elisha S Matekole¹, Yoni Sher²

¹Hearne Institute for Theoretical Physics, and Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803, USA.

Physical Review Letters

|December 7, 2019

Summary

This summary is machine-generated.

This study introduces a quantum technique using photon-number-resolving detectors to enhance signal-to-noise ratio (SNR) in light detection. The method surpasses classical limits for improved sensing and range-finding applications.

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Area of Science:

Quantum optics
Photonics
Applied physics

Background:

Classical light detection methods are limited by noise.
Improving signal-to-noise ratio (SNR) is crucial for sensitive applications like range-finding and sensing.

Purpose of the Study:

To present a novel quantum technique for enhancing SNR in light detection.
To demonstrate the superiority of this technique over classical methods.
To validate the technique through simulations of a rangefinder.

Main Methods:

Utilizing photon-number-resolving detectors to filter low photon numbers.
Investigating the quantum properties of the proposed technique.
Simulating the performance of a rangefinder employing the new method.

Main Results:

The technique offers a quantum advantage in SNR, surpassing classical limits under specific conditions.
Simulations show performance improvements in range-finding with minimal signal sampling.
Theoretical predictions are confirmed by simulation results.

Conclusions:

The presented quantum technique provides a significant improvement in SNR for light detection applications.
This method offers a non-classical approach to enhance sensing and range-finding capabilities.
The findings pave the way for more sensitive and efficient optical sensing technologies.