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Refrigeración de giro del movimiento de un diamante atrapado
T Delord1, P Huillery1, L Nicolas1
1Laboratoire de Physique de l'Ecole Normale Supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Université de Paris, Paris, France.
Nature
|April 3, 2020
Resumen
Los investigadores han demostrado el enfriamiento por giro de un microdiamante
Área de la Ciencia:
- Investigación en física cuántica
- Sistemas cuánticos macroscópicos
- Mecánica de espín cuántico
Sus antecedentes:
- Se estudia activamente el fuerte acoplamiento entre los sistemas cuánticos y los osciladores mecánicos.
- Los trabajos anteriores demostraron la lectura mecánica utilizando sistemas de espín y la lectura de espín utilizando osciladores.
- El control de temperatura del movimiento de objetos macroscópicos utilizando giros electrónicos no se había informado previamente.
Objetivo del estudio:
- Para demostrar el control de la temperatura del movimiento de objetos macroscópicos utilizando giros electrónicos de larga duración.
- Para investigar el par dependiente del giro y el enfriamiento del giro en un microdiamante atrapado.
- Para explorar fenómenos no lineales como la bistabilidad y las oscilaciones auto sostenidas estimuladas por el acoplamiento mecánico de espín.
Principales métodos:
- Utilizando un microdiamante atrapado con centros de vacío de nitrógeno (NV).
- Empleando una combinación de microondas y excitación láser.
- Impulsando el sistema mecánico de giro en el régimen no lineal.
Principales resultados:
- Observación del par dependiente del espín y del enfriamiento del movimiento del microdiamante.
- Se ha demostrado que los giros del centro NV actúan sobre la orientación del diamante y la libración de enfriamiento a través de la reacción dinámica.
- Se logra la bistabilidad y las oscilaciones coherentes auto-sostenidas estimuladas por el acoplamiento mecánico de giro.
Conclusiones:
- El estudio demuestra un nuevo enfriamiento de espín del movimiento de objetos macroscópicos utilizando centros NV en microdiamantes.
- Los hallazgos abren perspectivas para la generación de estados de movimiento no clásicos impulsados por espín.
- Las aplicaciones potenciales incluyen la detección de par de alta precisión, la emulación de problemas cuánticos y la detección de transiciones de fase cuánticas.
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