Daylight operation of a free space, entanglement-based quantum key distribution system
Daylight operation of a free space, entanglement-based quantum key distribution system
Many quantum key distribution (QKD) implementations using a free space transmission path are restricted to operation at night time in order to distinguish the signal photons used for a secure key establishment from the background light. Here, we present a lean entanglement-based QKD system overcoming that limitation. By implementing spectral, …