Engineering and Technology

Quantum and non-local effects offer over 40 dB noise resilience advantage towards quantum lidar

P. S. Blakey, H. Liu, et al.

This groundbreaking research by Phillip S. Blakey, Han Liu, Georgios Papangelakis, Yutian Zhang, Zacharie M. Léger, Meng Lon Lu, and Amr S. Helmy reveals a pioneering quantum-enhanced LiDAR system that outperforms classical systems with a staggering 43dB higher signal-to-noise ratio, making it a game-changer for 3D imaging in challenging, noisy environments.

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Abstract

This work demonstrates a quantum-enhanced LiDAR system achieving a 43dB higher signal-to-noise ratio (SNR) than a classical phase-insensitive system, tolerating noise levels over three orders of magnitude higher before detector saturation. This advantage is achieved through non-local cancellation of dispersion using time-frequency entanglement and purpose-built scanning collection optics, enabling 3D imaging of non-reflecting targets in noisy environments.

Publisher

Nature Communications

Published On

Sep 26, 2022

Authors

Phillip S. Blakey, Han Liu, Georgios Papangelakis, Yutian Zhang, Zacharie M. Léger, Meng Lon Lu, Amr S. Helmy

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