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Observación óptica de espines individuales en el silicio

Daniel B Higginbottom¹, Alexander T K Kurkjian^1,2, Camille Chartrand^1,2

¹Department of Physics, Simon Fraser University, Burnaby, British Columbia, Canada.

|July 13, 2022

Resumen

Los investigadores desarrollaron interfaces de espín de fotones basadas en silicio para redes cuánticas. Estas

Área de la Ciencia:

Ciencia de la información cuántica
Tecnologías cuánticas de estado sólido
Fotónica integrada

Sus antecedentes:

El desarrollo de un Internet cuántico global depende de las interfaces escalables entre fotones y materia en la banda de telecomunicaciones.
Las redes cuánticas existentes son prometedoras, pero requieren alternativas avanzadas para una aplicación más amplia.
El silicio es una plataforma líder para las tecnologías cuánticas debido a sus industrias fotónicas y microelectrónicas integradas maduras y a los qubits de espín de larga duración.

Objetivo del estudio:

Para abordar el desafío de detectar ópticamente las interfaces de fotones-espín individualmente direccionables en silicio.
Demostrar la viabilidad de componentes basados en silicio para redes de información cuántica.

Principales métodos:

Integración de qubits de fotones de espín de "centro T" dirigibles individualmente dentro de las estructuras fotónicas de silicio.
Caracterización de las transiciones ópticas dependientes del espín de estos qubits en la banda de telecomunicaciones.

Principales resultados:

Integración exitosa y caracterización óptica de los qubits de espín de fotones del "centro T" en dispositivos fotónicos de silicio.
Demostración de transiciones ópticas dependientes del espín en la banda de telecomunicaciones, un requisito crítico para las redes cuánticas.

Conclusiones:

Este trabajo supera un obstáculo clave en la tecnología cuántica de silicio al permitir la detección óptica de interfaces de espín de fotones.
Los hallazgos allanan el camino para la construcción de redes de información cuántica integradas en silicio que operan en la banda de telecomunicaciones.

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