Metropolitan single-photon distribution at 1550 nm for random number generation
Samuel Gyger, Katharina D. Zeuner, Thomas Lettner, Sandra Bensoussan, Martin Carlnäs, Liselott Ekemar, Lucas Schweickert, Carl Reuterskiöld Hedlund, Mattias Hammar, Tigge Nilsson, Jonas Almlöf, Stephan Steinhauer, Gemma Vall Llosera, Val Zwiller
Abstract
Quantum communication networks will connect future generations of quantum processors, enable metrological applications, and provide security through quantum key distribution. We present a testbed that is part of the municipal fiber network in the greater Stockholm metropolitan area for quantum resource distribution through a 20 km long fiber based on semiconductor quantum dots emitting in the telecom C-band. We utilize the service to generate random numbers passing the NIST test suite SP800-22 at a subscriber 8 km outside of the city with a bit rate of 23.4 kbit/s.