502 Gbits/s Quantum Random Number Generation with Simple and Compact Structure

Abstract

We propose and implement a simple and compact quantum random number generation (QRNG) scheme based on the quantum phase fluctuations of a DFB laser. The distribution probability of the experimentally measured data fits well with the simulation result, got from the theoretical model we established. Min-entropy estimation and Toeplitz-hashing randomness extractor are used to obtain the final random bit. The proposed approach has advantages not only in simple structure but also in high random bit generation rate. As a result, 502 Gbits/s random bits generation speed can be obtained, which is much higher than previous similar schemes. This approach offers a possibility to promote the practical application of QRNG.

3 pages, 5 figures, 1 table

References in corpus (7)

• A High Speed, Post-Processing Free, Quantum Random Number Generator
• Real time demonstration of high bitrate quantum random number generation with coherent laser light
• 68 Gbps quantum random number generation by measuring laser phase fluctuations
• Maximization of Extractable Randomness in a Quantum Random-Number Generator
• Randomness generation based on spontaneous emissions of lasers
• Fully integrated 3.2 Gbps quantum random number generator with real-time extraction
• Random numbers from vacuum fluctuations

Cited by in corpus (7)

• Quantum Communication Using Semiconductor Quantum Dots
• Continuous-variable quantum key distribution system: past, present, and future
• The Evolution of Quantum Secure Direct Communication: On the Road to the Qinternet
• 18.8 Gbps real-time quantum random number generator with a photonic integrated chip
• 6 Gbps real-time optical quantum random number generator based on vacuum fluctuation
• Recommendations and illustrations for the evaluation of photonic random number generators
• Information processing at the speed of light