2020/09/30 by Ohad Lib, Yaron Bromberg · 7 citations
Computer Science · Physics and Astronomy · #Bandwidth (computing) #Orbital Angular Momentum in Optics #Photon #Photon entanglement #Quantum #Quantum Information and Cryptography #Quantum entanglement #Quantum key distribution #Quantum optics #Random lasers and scattering media #Scattering #Wavefront #physics.optics #quant-ph
paper · pdf · doi:10.1364/ol.411606
published in Optics Letters 45(24), 6827 (Optica Publishing Group)
arxiv created 2020/09/30 · openalex created_date 2020/10/08 · openalex publication_date 2020/11/23 · arxiv updated 2022/02/16 · openalex updated_date 2026/08/05
Free-space quantum key distribution is gaining increasing interest as a leading platform for long range quantum communication. However, the sensitivity of quantum correlations to scattering induced by turbulent atmospheric links limits the performance of such systems. Recently, a method for compensating for the scattering of entangled photons was demonstrated, allowing for real-time optimization of their quantum correlations. In this Letter, we demonstrate the use of wavefront shaping for compensating for the scattering of non-collinear and non-degenerate entangled photons. These results demonstrate the applicability of wavefront shaping schemes for protocols utilizing the large bandwidth and emission angle of the entangled photons.