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Generación de números cuánticos aleatorios independientes del dispositivo

Yang Liu1,2, Qi Zhao3, Ming-Han Li1,2

  • 1National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, China.

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Este resumen es generado por máquina.

Este estudio demuestra que la generación de números aleatorios cuánticos independiente del dispositivo (DIQRNG) es segura contra todos los adversarios. Se logra la violación de la desigualdad de Bell sin lagunas, produciendo una genuina aleatoriedad cuántica para aplicaciones seguras.

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Área de la Ciencia:

  • Ciencia de la información cuántica
  • Criptografía cuántica
  • Física experimental

Sus antecedentes:

  • La aleatoriedad es crucial para el modelado numérico y la criptografía.
  • La generación de números aleatorios cuánticos independientes del dispositivo (DIQRNG) ofrece la máxima seguridad al no requerir suposiciones sobre el funcionamiento del dispositivo.
  • Los experimentos anteriores de DIQRNG tenían limitaciones de seguridad o no cerraron todas las lagunas.

Objetivo del estudio:

  • Para presentar un sistema DIQRNG seguro contra los adversarios cuánticos y clásicos.
  • Para lograr una violación libre de lagunas de una desigualdad de Bell para una aleatoriedad comprobadamente segura.
  • Demostrar la viabilidad práctica de DIQRNG para aplicaciones de alta seguridad.

Principales métodos:

  • Utilizó tecnología óptica cuántica avanzada para generar, modular y detectar pares de fotones entrelazados.
  • Se ha logrado una alta eficiencia de detección (>78%) a más de 200 metros, superando el umbral para la laguna de detección.
  • Asegurar una separación espacial de las mediciones y ajustes aleatorios de la base para cerrar la laguna de localidad y satisfacer la condición de ausencia de señalización.

Principales resultados:

  • Demostrado DIQRNG seguro contra los adversarios más generales.
  • Obtenido a través de 6,24 x 10 ^ 7 bits aleatorios certificados cuánticos en 96 horas utilizando una técnica de hash de matriz Toeplitz.
  • Se logró una probabilidad de falla de menos de 10^-5 para producir números aleatorios inseguros.

Conclusiones:

  • Este trabajo representa un avance significativo en la realización de DIQRNG probadamente seguro.
  • La demostración allana el camino para aplicaciones prácticas que requieren una aleatoriedad genuina e impredecible.
  • Los hallazgos contribuyen a una comprensión fundamental de la aleatoriedad cuántica.