Experimental Demonstration of Turbulence-resistant Lidar via Quantum Entanglement

TL;DR

This paper demonstrates a quantum Lidar system that is resistant to atmospheric turbulence and noise, using entangled photon pairs and two-photon interference, indicating potential for high-precision sensing in challenging environments.

Contribution

It provides the first experimental proof-of-principle of turbulence-resistant quantum Lidar leveraging entanglement and two-photon interference.

Findings

Quantum Lidar shows resistance to atmospheric turbulence.

The system demonstrates noise resistance.

Potential for high-precision timing and positioning under adverse conditions.

Abstract

We report a proof-of-principle experimental demonstration of a turbulence-resistant quantum Lidar system. As a key technology for sensing and ranging, Lidar has drawn considerable attention for a study from quantum perspective, in search of proven advantages complementary to the capabilities of conventional Lidar technologies. Environmental factors such as strong atmospheric turbulence can have detrimental effects on the performance of these systems. We demonstrate the possibility of turbulence-resistant operation of a quantum Lidar system via two-photon interference of entangled photon pairs. Additionally, the reported quantum Lidar also demonstrates the expected noise resistance. This study suggests a potential high precision timing-positioning technology operable under turbulence and noise.