Multiplexed Quantum Random Number Generation

Ben Haylock; Daniel Peace; Francesco Lenzini; Christian Weedbrook; Mirko Lobino

doi:10.22331/q-2019-05-13-141

Multiplexed Quantum Random Number Generation

Ben Haylock¹, Daniel Peace¹, Francesco Lenzini¹, Christian Weedbrook², and Mirko Lobino^1,3

¹Centre for Quantum Dynamics, Griffith University, Brisbane, 4111, Australia
²Xanadu, 372 Richmond St. W., Toronto, M5V 2L7, Canada
³Queensland Micro- and Nanotechnology Centre, Griffith University, Brisbane, 4111, Australia

Published:	2019-05-13, volume 3, page 141
Eprint:	arXiv:1801.06926v3
Doi:	https://doi.org/10.22331/q-2019-05-13-141
Citation:	Quantum 3, 141 (2019).

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Abstract

Fast secure random number generation is essential for high-speed encrypted communication, and is the backbone of information security. Generation of truly random numbers depends on the intrinsic randomness of the process used and is usually limited by electronic bandwidth and signal processing data rates. Here we use a multiplexing scheme to create a fast quantum random number generator structurally tailored to encryption for distributed computing, and high bit-rate data transfer. We use vacuum fluctuations measured by seven homodyne detectors as quantum randomness sources, multiplexed using a single integrated optical device. We obtain a real-time random number generation rate of 3.08 Gbit/s, from only 27.5 MHz of sampled detector bandwidth. Furthermore, we take advantage of the multiplexed nature of our system to demonstrate an unseeded strong extractor with a generation rate of 26 Mbit/s.

► BibTeX data

@article{Haylock2019multiplexedquantum,
  doi = {10.22331/q-2019-05-13-141},
  url = {https://doi.org/10.22331/q-2019-05-13-141},
  title = {Multiplexed {Q}uantum {R}andom {N}umber {G}eneration},
  author = {Haylock, Ben and Peace, Daniel and Lenzini, Francesco and Weedbrook, Christian and Lobino, Mirko},
  journal = {{Quantum}},
  issn = {2521-327X},
  publisher = {{Verein zur F{\"{o}}rderung des Open Access Publizierens in den Quantenwissenschaften}},
  volume = {3},
  pages = {141},
  month = may,
  year = {2019}
}

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