Security of high-dimensional quantum key distribution protocols using Franson interferometers
Security of high-dimensional quantum key distribution protocols using Franson interferometers
Franson interferometers are increasingly being proposed as a means of securing high-dimensional energy-time entanglement-based quantum key distribution (QKD) systems. Heuristic arguments have been proposed that purport to demonstrate the security of these schemes. We show, however, that such systems are vulnerable to attacks that localize the photons to several temporally …