Enredo cuántico de largo alcance en metamateriales dielectricos mu-cerca de cero

Área de la Ciencia:

• Ciencia de la información cuántica
• Los metamateriales
• La óptica cuántica

Sus antecedentes:

• El entrelazamiento cuántico es crucial para el procesamiento de información cuántica, pero está limitado por la decoherencia espacial y la disipación.
• Las soluciones existentes a menudo se basan en guías de onda plasmónicas, que sufren pérdidas inherentes.
• El entrelazamiento de largo alcance es esencial para desarrollar tecnologías cuánticas escalables en el chip.

Objetivo del estudio:

• Proponer y demostrar una nueva plataforma totalmente dieléctrica para lograr el entrelazamiento cuántico de largo alcance.
• Para superar las limitaciones de los sistemas plasmónicos con pérdidas utilizando metamateriales de epsilon cercano a cero (ENZ) y mu cercano a cero (MNZ).
• Mejorar el rango y la robustez del entrelazamiento para el procesamiento de información cuántica en el chip, específicamente compatible con los centros de diamantes de vacío de nitrógeno (NV).

Principales métodos:

• Se utilizó una plataforma totalmente dieléctrica que incorporaba metamateriales mu cercanos a cero (MNZ).
• Las propiedades de entrelazamiento investigadas utilizando centros de diamantes de vacío de nitrógeno (NV) integrados en el chip.
• Se evaluó la concurrencia transitorio y de estado estacionario y la función de correlación de segundo orden de retraso cero ($g 12 ( 2 ) 0 ).Principales resultados:El entrelazamiento se logra a una distancia superior a 17 longitudes de onda del espacio libre (aproximadamente 12,5 μm).Demostró un orden de magnitud de mejora en la competencia de entrelazamiento en comparación con las obras anteriores.Se observó una firma antiagrupación en la función de correlación de segundo orden, lo que indica un entrelazamiento de alta calidad.Conclusiones:La plataforma dieléctrica MNZ propuesta ofrece un avance significativo para el entrelazamiento cuántico de largo alcance.Esta tecnología es compatible con sistemas cuánticos en chip como los centros de diamantes NV, allanando el camino para el procesamiento práctico de información cuántica.El rango y la calidad mejorados del entrelazamiento representan un avance en la superación de los desafíos de la decoherencia y la disipación.Más Videos Relacionados05:39Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas PlatformPublished on: August 2, 20199.7K09:33Demonstration of Equal-Intensity Beam Generation by Dielectric MetasurfacesPublished on: June 7, 20196.4KSee all related videosVideos de Conceptos Relacionados01:30Electromagnetic Waves in Matter3.3KElectromagnetic waves can travel in the vacuum as well as in matter. 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