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No localidad cuántica. Detectar la no localidad en los estados cuánticos de muchos cuerpos
J Tura1, R Augusiak2, A B Sainz1
1ICFO-Institut de Ciències Fotòniques, Avenida Carl Friedrich Gauss, 3, 08860 Castelldefels, Barcelona, Spain.
Science (New York, N.Y.)
|June 14, 2014
Resumen
Los investigadores desarrollaron nuevas desigualdades multipartitas de Bell utilizando solo correlaciones de dos cuerpos para detectar la no localidad cuántica en sistemas de muchos cuerpos. Este avance permite pruebas experimentales con mediciones de espín total, avanzando la investigación en física nuclear y atómica.
Área de la Ciencia:
- La física cuántica es la física cuántica.
- Sistemas cuánticos de muchos cuerpos.
Sus antecedentes:
- Las propiedades de entrelazamiento son clave para comprender los sistemas cuánticos de muchos cuerpos.
- El papel de la no localidad cuántica sigue siendo menos entendido debido a los desafíos experimentales con las desigualdades multipartitas de Bell.
Objetivo del estudio:
- Para construir nuevas desigualdades multipartidistas de Bell accesibles para la verificación experimental.
- Para demostrar cómo estas desigualdades revelan la no localidad en los sistemas de muchos cuerpos relevantes para la física nuclear y atómica.
Principales métodos:
- Desarrolló las desigualdades multipartitas de Bell enfocándose exclusivamente en las correlaciones de dos cuerpos.
- Se propone utilizar componentes de espín total para pruebas experimentales.
Principales resultados:
- Las desigualdades construidas se violan para cualquier número de partes.
- Estas desigualdades efectivamente revelan la no localidad en los sistemas relevantes de muchos cuerpos.
Conclusiones:
- Las nuevas desigualdades proporcionan una vía factible para detectar experimentalmente la no localidad de muchos cuerpos.
- Esta investigación abre caminos para experimentos utilizando sistemas como conjuntos atómicos.
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