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Ventaja computacional cuántica usando fotones

Han-Sen Zhong1,2, Hui Wang1,2, Yu-Hao Deng1,2

  • 1Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China.

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Resumen
Este resumen es generado por máquina.

La computadora cuántica Jiuzhang demostró la ventaja computacional cuántica al realizar el muestreo de bosones de Gauss. Este enfoque de computación cuántica fotónica supera significativamente a las supercomputadoras clásicas en velocidad y complejidad.

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Área de la Ciencia:

  • La computación cuántica
  • La óptica cuántica
  • Complejidad computacional

Sus antecedentes:

  • Las computadoras cuánticas ofrecen soluciones potenciales para problemas computacionales intratables.
  • El muestreo de bosones es una tarea clave para demostrar la ventaja computacional cuántica.

Objetivo del estudio:

  • Para llevar a cabo el muestreo de bosones gaussianos utilizando una computadora cuántica fotónica a gran escala.
  • Para validar la ventaja computacional cuántica de la computadora cuántica fotónica Jiuzhang.

Principales métodos:

  • Utilizó un interferómetro de baja pérdida de 100 modos con 50 estados comprimidos de modo único.
  • Utilizó 100 detectores de fotones únicos de alta eficiencia para el muestreo de salida.
  • Resultados validados contra hipótesis para estados térmicos, fotones distinguibles y distribución uniforme.

Principales resultados:

  • Se lograron hasta 76 clics de fotones de salida, explorando una dimensión de espacio de estado de 10^30.
  • Demostró una velocidad de muestreo aproximadamente 10^14 veces más rápida que las simulaciones clásicas de última generación.
  • Validar la naturaleza cuántica de las muestras generadas.

Conclusiones:

  • La computadora cuántica fotónica Jiuzhang demostró con éxito la ventaja computacional cuántica.
  • El muestreo de bosones gaussianos es una vía viable para lograr la supremacía cuántica.
  • Este trabajo allana el camino para tecnologías de procesamiento de información cuántica más potentes.