Teleportation-based quantum imaging

Abstract Quantum teleportation lies at the heart of various quantum technologies. A fundamental challenge remains as to whether we can teleport multilevel qudit states and, ultimately, a structured optical image with bipartite entanglement. Here, we report a proof-of-principle experiment of realizing teleportation-based high-dimensional state transfer at a distance, using photonic orbital angular momentum (OAM). We exploit “perfect vortices” for preparing high-dimensional yet maximal OAM entanglement. Based on nonlinear sum-frequency generation working with a strong coherent wave packet and a single photon, we also conduct the Bell-like sate measurements for high-dimensional “perfect vortices”. We experimentally achieve the average fidelity 0.879±0.048 and 0.796±0.066 for a complete set of 3-dimensional and 5-dimensional OAM mutually unbiased bases, respectively. Furthermore, by exploring the full transverse entanglement, we succeed in realizing the first teleportation-based quantum image transport at a distance. From the multi-pixel field of view of the received images, we characterize the high-dimensional feature of teleportation-like channel capacity. It is expected that, with the future advances in nonlinear frequency conversion, our scheme will offer a truly secure quantum image teleportation for the upcoming quantum network.