Jeffrey H. Shapiro

TL;DR: A high-dimensional quantum key distribution protocol suitable for integration with telecommunication infrastructure is proposed and the key is generated by the temporal correlations of photons measured in mutually unbiased bases using dispersive optics.

TL;DR: A single-end adaptive-optics (AO) module is experimentally demonstrated to mitigate the emulated atmospheric turbulence effects in a bi-directional quantum communication link, which employs orbital angular momentum (OAM) for data encoding.

TL;DR: High-dimensional quantum key distribution capabilities are demonstrated both in the laboratory and over a deployed fiber, using photons encoded in a high-dimensional alphabet to increase the secure information yield per detected photon.

TL;DR: In this paper, the relationship between real-time phase compensation and the optimum channel-matched filter compensator is developed, with emphasis on the fundamental limits imposed by the propagation medium, and the effects of uncompensated amplitude fluctuations and finite isoplanatic diameter are evaluated.

TL;DR: The locking capacity of a quantum channel is defined as the maximum amount of locked information that can be reliably transmitted to a legitimate receiver by exploiting many independent uses of a Quantum Shannon theory channel and an amount of secret key sublinear in the number of channel uses.