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Realización de una red cuántica multinodo de qubits remotos de estado sólido

M Pompili1,2, S L N Hermans1,2, S Baier1,2

  • 1QuTech, Delft University of Technology, 2628 CJ Delft, Netherlands.

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Los investigadores construyeron una red cuántica de tres nodos utilizando qubits de diamante para distribuir estados entrelazados. Esto demuestra los protocolos clave para un futuro Internet cuántico, permitiendo nuevas tecnologías.

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Área de la Ciencia:

  • Las redes cuánticas
  • Ciencias de la información cuántica
  • La comunicación cuántica

Sus antecedentes:

  • Los estados entrelazados son cruciales para las futuras tecnologías cuánticas.
  • La construcción de redes cuánticas de múltiples nodos es esencial para un Internet cuántico.

Objetivo del estudio:

  • Para realizar una red cuántica basada en entrelazamiento de tres nodos.
  • Para demostrar los protocolos clave de la red cuántica sin selección posterior.

Principales métodos:

  • Utilizó nodos cuánticos remotos basados en qubits de comunicación de diamante.
  • Implementó una arquitectura estabilizada por fase escalable con qubits de memoria y lógica cuántica local.
  • Logrado la comunicación en tiempo real y las operaciones de la puerta de alimentación hacia adelante.

Principales resultados:

  • Distribución exitosa de estados genuinamente multipartidistas entrelazados en tres nodos.
  • Intercambio de entrelazamiento demostrado a través de un nodo intermedio.
  • Operó dos protocolos de red cuántica sin la necesidad de una selección posterior.

Conclusiones:

  • Estableció una plataforma clave para el desarrollo de protocolos de red cuántica de múltiples nodos.
  • Abrió el camino para probar y avanzar una pila de control de red cuántica.
  • Ha permitido la exploración de nuevas tecnologías cuánticas basadas en el entrelazamiento distribuido.