We report the first demonstration of superdense coding over optical fiber links, taking advantage of a complete Bell-state measurement enabled by time-polarization hyperentanglement, linear optics, and common single-photon detectors. We demonstrate the highest single-qubit channel capacity to date encoding on a single-degree of freedom utilizing linear optics, 1.665±0.018, and we provide a full experimental implementation of a hybrid, quantum-classical communication protocol for image transfer.

Conference on Lasers and Electro-OpticsJan 1, 20170 citations

New Near-Deterministic All-Optical Teleportation, Superdense Coding, and Cryptography Scheme

Mladen Pavičić

We present a new setup in which we near-deterministically separate all four photon Bell states by means of linearly concatenated Mach-Zehnder interferometers. Realistic proposals for implementations are given.

Research in Optical SciencesJan 1, 20120 citations