Real-Time Source Independent Quantum Random Number Generator with Squeezed States
arXiv:1903.01071 · doi:10.1103/PhysRevApplied.12.034017
Abstract
Random numbers are a fundamental ingredient for many applications including simulation, modelling and cryptography. Sound random numbers should be independent and uniformly distributed. Moreover, for cryptographic applications they should also be unpredictable. We demonstrate a real-time self-testing source independent quantum random number generator (QRNG) that uses squeezed light as source. We generate secure random numbers by measuring the quadratures of the electromagnetic field without making any assumptions on the source; only the detection device is trusted. We use a homodyne detection to alternatively measure the Q and P conjugate quadratures of our source. Using the entropic uncertainty relation, measurements on P allow us to estimate a bound on the min-entropy of Q conditioned on any classical or quantum side information that a malicious eavesdropper may detain. This bound gives the minimum number of secure bits we can extract from the Q measurement. We discuss the performance of different estimators for this bound. We operate this QRNG with a squeezed state and we compare its performance with a QRNG using thermal states. The real-time bit rate was 8.2 kb/s when using the squeezed source and between 5.2-7.2 kb/s when the thermal state source was used.
arXiv comment11 pages, 9 figures
References in corpus (44)
- Bell nonlocality
- Random Numbers Certified by Bell's Theorem
- The Uncertainty Principle in the Presence of Quantum Memory
- Quantum Random Number Generators
- The operational meaning of min- and max-entropy
- Entropic Uncertainty Relations and their Applications
- Unconditional optimality of Gaussian attacks against continuous-variable QKD
- Optimality of Gaussian Attacks in Continuous Variable Quantum Cryptography
- Detection-Loophole-Free Test of Quantum Nonlocality, and Applications
- The Uncertainty Relation for Smooth Entropies
- Quantum random number generation
- Extremality of Gaussian quantum states
- A Fully Quantum Asymptotic Equipartition Property
- A Hierarchy of Information Quantities for Finite Block Length Analysis of Quantum Tasks
- Postprocessing for quantum random number generators: entropy evaluation and randomness extraction
- Real time demonstration of high bitrate quantum random number generation with coherent laser light
- A self-testing quantum random number generator
- Cosmic Bell Test: Measurement Settings from Milky Way Stars
- Quantum Randomness Certified by the Uncertainty Principle
- Uncertainty relations from simple entropic properties
- Experimentally Generated Randomness Certified by the Impossibility of Superluminal Signals
- Source-device-independent Ultra-fast Quantum Random Number Generation
- Secure heterodyne-based quantum random number generator at 17 Gbps
- High speed self-testing quantum random number generation without detection loophole
- Maximization of Extractable Randomness in a Quantum Random-Number Generator
- Semi-device-independent framework based on natural physical assumptions
- Quantum random number generation on a mobile phone
- High-bandwidth squeezed light at 1550 nm from a compact monolithic PPKTP cavity
- Experimental measurement-device-independent quantum random number generation
- Reverse Reconciliation Continuous Variable Quantum Key Distribution Based on the Uncertainty Principle
- Position-Momentum Uncertainty Relations in the Presence of Quantum Memory
- Sampling of min-entropy relative to quantum knowledge
- Some results concerning maximum Renyi entropy distributions
- High Speed Continuous Variable Source-Independent Quantum Random Number Generation
- Fully integrated 3.2 Gbps quantum random number generator with real-time extraction
- Rényi entropy uncertainty relation for successive projective measurements
- Long term test of a fast and compact Quantum Random Number Generator
- Entropic uncertainty relations for extremal unravelings of super-operators
- Random bits, true and unbiased, from atmospheric turbulence
- Coherence as a resource for source-independent quantum random-number generation
- Random number generation with cosmic photons
- Quantum random number generator based on twin beams
- Astronomical random numbers for quantum foundations experiments
- Reconstruction of photon number conditioned states using phase randomized homodyne measurements
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- Fully passive quantum random number generation with untrusted light
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