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Pulsos estacionarios de luz en un medio atómico
M Bajcsy1, A S Zibrov, M D Lukin
1Physics Department, Harvard University, Cambridge, Massachusetts 02138, USA.
Nature
|December 12, 2003
Resumen
Los investigadores demuestran un nuevo método para almacenar y liberar pulsos de luz utilizando la coherencia de espín atómico. Esta técnica permite la localización controlada de la luz, avanzando la memoria cuántica y la investigación de la óptica no lineal.
Área de la Ciencia:
- La óptica cuántica es una óptica cuántica.
- Física atómica La física atómica es la física de los átomos.
- La óptica no lineal es la óptica no lineal.
Sus antecedentes:
- El control coherente de la propagación de la luz es crucial para las tecnologías cuánticas como la memoria cuántica.
- Los métodos anteriores utilizaban la transparencia inducida electromagnéticamente para ralentizar los pulsos de luz en medios atómicos.
Objetivo del estudio:
- Demostrar una nueva técnica para controlar la propagación y el almacenamiento de la luz.
- Para crear pulsos de luz estacionarios ligados a la coherencia de espín atómico.
Principales métodos:
- Utilizando un medio de átomos de Rubidio (Rb).
- La conversión de propagación de pulsos de luz en localizado, estacionario excitaciones de energía electromagnética.
- Vinculando estas excitaciones a la coherencia de espín atómico.
Principales resultados:
- Demostró con éxito la conversión de pulsos de luz en energía estacionaria y localizada.
- Mostró la capacidad de retener y liberar estas excitaciones de luz después de un intervalo controlable.
- Impulsos de luz creados con envolturas estacionarias ancladas por la coherencia de espín atómico.
Conclusiones:
- La técnica desarrollada ofrece una nueva forma de manipular los estados de los fotones.
- Permite nuevos enfoques para procesos ópticos no lineales, particularmente en bajos niveles de luz.
- allana el camino para los avances en la memoria cuántica y el control de la luz.
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