{"id":14215,"date":"2026-01-11T16:13:46","date_gmt":"2026-01-11T15:13:46","guid":{"rendered":"https:\/\/nolle.engineering\/?page_id=14215"},"modified":"2026-01-22T11:10:53","modified_gmt":"2026-01-22T10:10:53","slug":"qes","status":"publish","type":"page","link":"https:\/\/nolle.engineering\/en\/qes\/","title":{"rendered":"Quantum Entropy Source"},"content":{"rendered":"

Scope<\/h1>\n\n\n\n

The Quantum Entropy Source (QES)<\/strong> project explores the generation, measurement, and dissemination of high-quality physical entropy derived from fundamentally unpredictable physical processes.<\/p>\n\n\n\n

At its core, the project focuses on quantifiable entropy<\/strong>, not merely random-looking numbers. The system continuously measures physical events, estimates entropy in real time, applies cryptographically sound conditioning, and exposes both entropy products and health metrics transparently via live dashboards and APIs.<\/p>\n\n\n\n

The long-term goal is to provide a reliable, auditable, and openly observable entropy source<\/strong> suitable for research, experimentation, and integration into distributed systems.<\/p>\n\n\n\n

Theory (High-Level)<\/h1>\n\n\n\n

In this project, entropy<\/em> is used in the information-theoretic and cryptographic sense<\/strong>:<\/p>\n\n\n\n

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Entropy is a quantitative measure of the unpredictability of a physical process.<\/p>\n<\/blockquote>\n\n\n\n

The system derives entropy from the timing uncertainty of radioactive decay events<\/strong>, a process governed by quantum mechanics and widely accepted as fundamentally unpredictable.<\/p>\n\n\n\n

Cryptographic conditioning (e.g. SHA-256) is used to produce uniform output without increasing entropy<\/p>\n\n\n\n

    \n
  • Entropy resides in the physical process<\/strong>, not in the output bits<\/li>\n\n\n\n
  • Output bitstreams carry entropy only if extraction is done correctly<\/strong><\/li>\n\n\n\n
  • Entropy is quantified conservatively using min-entropy bounds<\/strong><\/li>\n<\/ul>\n\n\n\n

    System Overview<\/h2>\n\n\n\n

    Physical Entropy Source<\/h3>\n\n\n\n
      \n
    • Naturally occurring radioactive material embedded in ceramic matrix<\/li>\n\n\n\n
    • Decay events detected using Geiger-M\u00fcller tubes<\/li>\n\n\n\n
    • High-resolution hardware timers capture event timestamps<\/li>\n\n\n\n
    • Timing jitter and arrival statistics form the raw entropy source<\/li>\n<\/ul>\n\n\n\n

      The radioactive material is fixed, non-dispersible, and continuously monitored<\/strong>. External radiation exposure remains comparable to natural background levels.<\/p>\n\n\n\n

      Entropy Processing Pipeline<\/h3>\n\n\n\n
        \n
      1. Event detection<\/strong> (decay triggers)<\/li>\n\n\n\n
      2. High-resolution timestamp capture<\/strong><\/li>\n\n\n\n
      3. Raw entropy estimation<\/strong><\/li>\n\n\n\n
      4. Health monitoring and interference detection<\/strong><\/li>\n\n\n\n
      5. Cryptographic conditioning<\/strong><\/li>\n\n\n\n
      6. Distribution and visualization<\/strong><\/li>\n<\/ol>\n\n\n\n

        Entropy rate and quality metrics are continuously computed and logged.<\/p>\n\n\n\n

        \n\n\n\n

        Operational Safety & Transparency<\/h2>\n\n\n\n

        Operational safety is treated as a first-class design requirement.<\/p>\n\n\n\n

          \n
        • Radiation levels are continuously monitored<\/li>\n\n\n\n
        • Alpha radiation remains fully contained within the material matrix<\/li>\n\n\n\n
        • Dose rates remain well below public exposure limits<\/li>\n\n\n\n
        • The radioactive material is not accessible during normal operation<\/li>\n<\/ul>\n\n\n\n

          Live radiation and entropy health data are publicly visible via the dashboard.<\/p>\n\n\n\n

          Development Roadmap<\/h1>\n\n\n\n

          V1 Prototype<\/h2>\n\n\n\n

          The V1 system demonstrates end-to-end entropy generation, monitoring, and dissemination.<\/p>\n\n\n\n

            \n
          • Utilization of quantum randomness via radioactive decay<\/li>\n\n\n\n
          • Single Geiger-M\u00fcller counter<\/li>\n\n\n\n
          • Entropy rate >= 200bit\/s<\/li>\n\n\n\n
          • Basic health monitoring<\/li>\n\n\n\n
          • Real time data dissemination<\/li>\n\n\n\n
          • Public dashboard access<\/li>\n<\/ul>\n\n\n\n

            V1 Architecture<\/h2>\n\n\n\n

            The architecture separates physical sensing, entropy estimation, conditioning, storage, and presentation into independent modules to allow verification and future scaling.<\/p>\n\n\n\n

            \"\"<\/figure>\n\n\n\n

            Live Dashboard<\/h2>\n\n\n\n

            The live dashboard exposes the internal state of the system in real time, including:<\/p>\n\n\n\n

              \n
            • Event rates (counts per minute)<\/li>\n\n\n\n
            • Estimated entropy rate (bits per second)<\/li>\n\n\n\n
            • Conditioning throughput<\/li>\n\n\n\n
            • Health test status<\/li>\n\n\n\n
            • Long-term stability trends<\/li>\n<\/ul>\n\n\n\n