  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.
