100-Gbit/s Integrated Quantum Random Number Generator Based on Vacuum Fluctuations

Emerging communication and cryptography applications call for reliable fast unpredictable random number generators. Quantum generation allows the creation of truly numbers due to inherent randomness available in quantum mechanics. A popular approach is use vacuum state generate numbers. While convenient, this has been generally limited speed compared other schemes. Here, through custom codesign optoelectronic integrated circuits side-information reduction by digital filtering, we experimentally demonstrate an ultrafast rate 100 Gbit/s, setting a new record vacuum-based one order magnitude. Furthermore, our experimental demonstrations are well supported upgraded device-dependent framework that secure against both classical side information also properly considers nonlinearity digitization process. This generator chip-scale platform holds promise next-generation applications.1 MoreReceived 14 November 2022Accepted 3 February 2023DOI:https://doi.org/10.1103/PRXQuantum.4.010330Published American Physical Society under terms Creative Commons Attribution 4.0 International license. Further distribution work must maintain attribution author(s) published article's title, journal citation, DOI.Published SocietyPhysics Subject Headings (PhySH)Research AreasQuantum communicationQuantum cryptographyQuantum processing with continuous variablesQuantum theoryQuantum Information