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Publication

Superdense Coding over Optical Fiber Links with Complete Bell-State Measurements

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Publication Type
Journal
Journal Name
Physical Review Letters
Publication Date
Volume
118
Issue
5
Conference Date
-

Adopting quantum communication to modern networking requires transmitting quantum information through a fiber-based infrastructure. 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 utilizing linear optics, 1.665±0.018 , and we provide a full experimental implementation of a hybrid, quantum-classical communication protocol for image transfer.