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Imágenes fotoeléctricas y lectura coherente del estado de giro de centros de vacío de nitrógeno individuales en
Petr Siyushev1,2, Milos Nesladek3,4,5, Emilie Bourgeois6,4
1Institute for Quantum Optics and IQST, Ulm University, Albert-Einstein-Allee 11, D-89081 Ulm, Germany. petr.siyushev@uni-ulm.de milos.nesladek@uhasselt.be.
Science (New York, N.Y.)
|February 16, 2019
Resumen
Los investigadores desarrollaron un nuevo método fotoeléctrico para leer los centros de vacío de nitrógeno (NV) en el diamante. Este avance permite dispositivos de diamante cuántico compactos al reemplazar las configuraciones ópticas voluminosas con la detección eléctrica.
Área de la Ciencia:
- Ciencia de la información cuántica
- Ciencias de los materiales
- Física de la materia condensada
Sus antecedentes:
- Los centros de vacío de nitrógeno (NV) en el diamante son cruciales para la detección y la información cuántica.
- Los métodos actuales de lectura óptica para los estados de espín NV son engorrosos, lo que dificulta la miniaturización del dispositivo.
Objetivo del estudio:
- Desarrollar un nuevo método de detección fotoeléctrica para centros de NV.
- Para permitir la fabricación de dispositivos de diamante cuántico compactos e integrados.
Principales métodos:
- Detección fotoeléctrica de la resonancia magnética y las oscilaciones de Rabi a nivel de un solo defecto.
- Demostración de las imágenes fotoeléctricas de los centros NV individuales a temperatura ambiente.
Principales resultados:
- Lectura fotoeléctrica exitosa de los estados de espín NV, evitando los métodos ópticos tradicionales.
- Se logra un alto contraste de imagen y una relación señal-ruido en imágenes fotoeléctricas.
- Se han demostrado las oscilaciones de Rabi y la detección por resonancia magnética mediante medios fotoeléctricos.
Conclusiones:
- La detección fotoeléctrica ofrece una alternativa viable a la lectura óptica para los centros de NV.
- Este avance facilita el desarrollo de dispositivos de diamante cuántico totalmente integrados y miniaturizados.
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