High-speed Source-Device-Independent Quantum Random Number Generator on a Chip
arxiv(2023)
摘要
A wide range of applications require, by hypothesis, to have access to a
high-speed, private, and genuine random source. Quantum Random Number
Generators (QRNGs) are currently the sole technology capable of producing true
randomness. However, the bulkiness of current implementations significantly
limits their adoption. In this work, we present a high-performance
source-device independent QRNG leveraging a custom made integrated photonic
chip. The proposed scheme exploits the properties of a heterodyne receiver to
enhance security and integration to promote spatial footprint reduction while
simplifying its implementation. This characteristics could represents a
significant advancement toward the development of generators better suited to
meet the demands of portable and space applications. The system can deliver
secure random numbers at a rate greater than 20 Gbps with a reduced spatial and
power footprint.
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