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El entrelazamiento cuántico de los momentos angulares altos
Robert Fickler1, Radek Lapkiewicz, William N Plick
1Quantum Optics, Quantum Nanophysics, Quantum Information, University of Vienna, Vienna A-1090, Austria. robert.fickler@univie.ac.at
Science (New York, N.Y.)
|November 3, 2012
Resumen
Los investigadores crearon entrelazamiento entre fotones con una gran diferencia de momento angular orbital (OAM). Este avance en el entrelazamiento cuántico podría mejorar las aplicaciones de teledetección.
Área de la Ciencia:
- La física cuántica es la física cuántica.
- Ciencias de la información cuántica Ciencias de la información cuántica.
Sus antecedentes:
- Fotones individuales con estructuras de fase helicoidales pueden llevar el momento angular orbital (OAM).
- El entrelazamiento de fotones es crucial para la ciencia de la información cuántica y las pruebas fundamentales de la teoría cuántica.
- No hay límite teórico para el OAM que un solo fotón puede poseer.
Objetivo del estudio:
- Para generar y verificar el entrelazamiento entre dos fotones con una diferencia significativa en su número cuántico OAM.
- Para explorar el potencial de alto entrelazamiento OAM en la mejora de la sensibilidad de la teledetección.
Principales métodos:
- Utilizando un esquema interferométrico para transferir el entrelazamiento de polarización a OAM.
- Generar y verificar el entrelazamiento entre fotones con una gran diferencia de número cuántico OAM.
Principales resultados:
- Se generó y verificó con éxito el entrelazamiento entre dos fotones con una diferencia OAM de 600 quanta.
- Se ha demostrado que un alto entrelazamiento OAM puede mejorar la sensibilidad de resolución angular en la teledetección.
Conclusiones:
- Las limitaciones técnicas son las principales restricciones para lograr un mayor enredo de OAM.
- El alto entrelazamiento de OAM es prometedor para el avance de las tecnologías de teledetección.
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