Observación del ruido de proyección de presión de radiación en un objeto macroscópico
T P Purdy1, R W Peterson, C A Regal
1JILA, University of Colorado and National Institute of Standards and Technology, Boulder, CO 80309, USA. tpp@jila.colorado.edu
Resumen
Los científicos midieron un objeto macroscópico.
Área de la Ciencia:
- La mecánica cuántica es la mecánica cuántica.
- La óptica es la óptica.
- Nanotecnología La nanotecnología es la nanotecnología.
Sus antecedentes:
- La mecánica cuántica de la medición de posición macroscópica es un desafío debido al acoplamiento ambiental y al ruido clásico.
- La comprensión de la retroacción cuántica es crucial para las mediciones sensibles.
Objetivo del estudio:
- Para investigar la retroacción mecánica cuántica en mediciones de posición continua de un objeto macroscópico.
- Para explorar los efectos del ruido de inyección de presión de radiación en un resonador mecánico.
Principales métodos:
- Monitoreo óptico continuo de la posición de un resonador mecánico.
- Aplicando fuerzas de medición cada vez más fuertes.
- Analizando la presión de radiación de los fotones en un campo coherente.
Principales resultados:
- Fuerza de retroacción mecánica cuántica observada consistente con el límite de incertidumbre de Heisenberg.
- Fuerza de reacción demostrada comparable a las fuerzas térmicas.
- Se detectaron correlaciones temporales entre la fuerza de radiación y las fluctuaciones de la posición del resonador.
Conclusiones:
- Las mediciones continuas revelan reacciones cuánticas en sistemas macroscópicos.
- El ruido de disparo de presión de radiación es una fuente significativa de reacción cuántica.
- Las correlaciones proporcionan información sobre la interacción entre la medición y la dinámica del sistema.
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