Communication systems and methods

Abstract

A communication system is provided that includes a first quantum key distribution device configured to be coupled to a second quantum key distribution device over a quantum channel that communicates a quantum state via the quantum channel, a classical device coupled to the first quantum key distribution device with a connection cable to provide a communication path between the classical device and the first quantum key distribution device, and a quantum channel carrier engaging the connection cable. The quantum channel carrier is configured to, responsive to movement of the connection cable, disrupt a quantum state within the quantum channel.