Publication Type
Journal
Journal Name
Physical Review Letters
Publication Date
Volume
118
Issue
118
Abstract
Adopting quantum communication to modern networking requires transmitting quantum information
through 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.
