Randomness in quantum random number generator from vacuum fluctuations with source-device-independence
arXiv:2409.04186 · doi:10.1007/s00340-025-08471-6
Abstract
The application for random numbers is ubiquitous. We experimentally build a well-studied quantum random number generator from homodyne measurements on the quadrature of the vacuum fluctuations. Semi-device-independence in this random number generator is usually obtained using phase modulators to shift the phase of the laser and obtain random sampling from both X and P quadrature measurements of the vacuum state in previous implementations. We characterize the experimental parameters for optimal performance of this source-device independent quantum random number generator by measuring the two quadratures concurrently using two homodyne detectors. We also study the influence of these parameters on randomness, which can be extracted based on Shannon entropy and von Neumann entropy, which correspond to an eavesdropper listening to classical and quantum side information, respectively.
References in corpus (19)
- Quantum Random Number Generators
- Unconditional optimality of Gaussian attacks against continuous-variable QKD
- Quantum random number generation
- A Fast and Compact Quantum Random Number Generator
- Extremality of Gaussian quantum states
- A High Speed, Post-Processing Free, Quantum Random Number Generator
- Real time demonstration of high bitrate quantum random number generation with coherent laser light
- Source-device-independent Ultra-fast Quantum Random Number Generation
- Secure heterodyne-based quantum random number generator at 17 Gbps
- Maximization of Extractable Randomness in a Quantum Random-Number Generator
- 1.2 GHz Balanced Homodyne Detector for Continuous-Variable Quantum Information Technology
- 6 Gbps real-time optical quantum random number generator based on vacuum fluctuation
- High Speed Continuous Variable Source-Independent Quantum Random Number Generation
- Fully integrated 3.2 Gbps quantum random number generator with real-time extraction
- Real-Time Source Independent Quantum Random Number Generator with Squeezed States
- Simple source device-independent continuous-variable quantum random number generator
- Provably-secure quantum randomness expansion with uncharacterised homodyne detection
- High-speed Source-Device-Independent Quantum Random Number Generator on a Chip
- Mitigation of Channel Tampering Attacks in Continuous-Variable Quantum Key Distribution