Quantum communication with ultrafast multimode pulsed light
Andreas Christ, Benjamin Brecht, Georg Harder, Andreas Eckstein, Vahid Ansari, Cosmo Lupo, Christine Silberhorn · 2013
Using ultrafast multimode PDC sources and optical quantum pulse gates based on engineered frequency conversion processes we introduce multiplexed quantum information coding and show that it enables an exponential increase in the achievable quantum communication rate.