Universal Interferometer Quantum Random Number Generator
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Solution Overview
Problem
Existing random number generators, particularly pseudo-random number generators, fail to produce high-quality randomness due to their deterministic nature, lacking true unpredictability and incomputability, which is essential for secure applications like cryptography.
Innovation Solution
A three-dimensional quantum random number generator (QRNG) system that utilizes a universal interferometer and beamsplitters with specific probability distributions to generate maximally unpredictable ternary digits, which are then mapped into binary bits for encryption, ensuring strong incomputability and Borel normality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If pseudo-random number generators are used, then device complexity is reduced, but quality of randomness deteriorates due to deterministic nature
Solution Approach 1:
The patent replaces classical deterministic algorithms with quantum mechanical processes. Specifically, it uses quantum measurement processes where the act of measuring a quantum system in a superposition state inherently produces random outcomes that cannot be predicted by any deterministic algorithm, thus substituting mechanical/computational randomness generation with quantum physical processes.
Solution Approach 2:
The patent changes the fundamental parameter of randomness generation from computational (algorithmic) to physical (quantum). By utilizing quantum superposition states and measurement collapse, the system transforms the nature of randomness from pseudo-random (deterministic but unpredictable) to truly random (fundamentally indeterministic), improving quality while accepting increased device complexity.
2Reliability
If quantum random number generators are used, then quality of randomness is improved, but device complexity increases
Solution Approach 1:
The patent segments the quantum random number generation process into distinct functional modules: a quantum state preparation stage, a measurement stage, and a classical post-processing stage. This segmentation allows each component to be optimized independently and facilitates integration with classical systems, thereby managing device complexity while maintaining quantum-generated randomness quality.
Solution Approach 2:
The patent introduces an intermediary classical processing layer that receives quantum measurement outcomes and transforms them into usable random number sequences. This intermediary handles tasks such as bias removal, randomness extraction, and formatting, allowing the quantum component to focus solely on generating raw random bits, thus simplifying the overall system architecture.
3Measurement precision
If Bell-type inequalities are used for certification, then statistical randomness is verified, but incomputability guarantee is insufficient
Solution Approach 1:
The patent replaces statistical verification methods (Bell-type inequalities) with a fundamentally different approach based on quantum information theory and computational complexity. Instead of relying on statistical correlations that only indicate non-classical behavior, the system uses quantum randomness extraction protocols that provide computational guarantees against any efficient algorithm, substituting statistical evidence with information-theoretic proofs.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system produces a provably better quality of random bits than traditional pseudo-random number generators and quantum random number generators, providing maximally unpredictable and secure encryption keys for cryptographic applications.
Implementation Method 1
a universal interferometer to output a measurement outcome
Implementation Method 2
a detector to detect the measurement outcome and produce a quantum random (QR) ternary digit
Data Source
AI summary
A key generator system that includes a quantum random number generator (QRNG) to generate a string of ternary digits. The QRNG includes a preparation stage, a universal interferometer to output a measurement outcome, and a detector to detect the measurement outcome and produce a quantum random (QR) ternary digit based on the outcome. The system includes a key generator to receive the string of QR ternary digits and generate a key including binary string of bits produced by mapping pairs of QR ternary digits into bits. The preparation stage includes an arrangement of beamsplitters defined by a selected probability distribution including a probability set of {p1, p2, p3} that adds to 1 and p1, p2 and p3 are rational numbers and less than 1 and greater than zero, and a selected one preparation stage candidate of candidates derived based on a value definite quantum states equation.