Abstract

There is growing incentive to integrate quantum communication technologies into our high-bandwidth communication networks. However, for a realistic and practical large-scale deployment, drastic reductions of the size, cost and power consumption of current quantum cryptographic systems are necessary. We show how this goal can be achieved using photonic integration. We demonstrate quantum communication chips capable of record performances including quantum key distribution at 250kb/s over a 20dB-loss channel and quantum random number generation at 8Gb/s. The scalability and affordability of these new devices will allow the deployment of quantum cryptography in high connectivity networks.

© 2019 The Author(s)

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