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Enredo entre dos modos atómicos separados espacialmente
Karsten Lange1, Jan Peise1, Bernd Lücke1
1Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, D-30167 Hannover, Germany.
Science (New York, N.Y.)
|April 28, 2018
Resumen
Los investigadores crearon enredos entre dos nubes atómicas ultrafrías separadas. Este avance en el entrelazamiento cuántico para partículas idénticas abre nuevas posibilidades para aplicaciones y tecnologías de información cuántica.
Área de la Ciencia:
- La física cuántica
- Ciencias de la información cuántica
- Física atómica
Sus antecedentes:
- Las tecnologías cuánticas requieren grandes conjuntos de partículas entrelazadas.
- El entrelazamiento en átomos neutros ultrafríos se ha logrado para miles de partículas.
- El entrelazamiento en partículas idénticas carece de subsistemas claramente definidos.
Objetivo del estudio:
- Para generar entrelazamiento entre dos nubes separadas espacialmente de partículas idénticas ultrafrías.
- Para permitir el uso de estados entrelazados de partículas indistinguibles para aplicaciones de información cuántica.
Principales métodos:
- Preparado un conjunto de partículas idénticas ultrafrías en un estado gemelo de Fock.
- Divide el conjunto en dos nubes separadas espacialmente.
- Utilizó la simetría de intercambio de partículas inherente a partículas idénticas.
Principales resultados:
- Generado con éxito entrelazamiento entre las dos nubes separadas.
- Control demostrado sobre estados entrelazados de partículas indistinguibles.
- Demostró la capacidad de abordar las nubes separadas individualmente.
Conclusiones:
- El experimento proporciona un nuevo método para generar entrelazamiento entre subsistemas distintos de partículas idénticas.
- Este trabajo allana el camino para explotar el entrelazamiento en partículas indistinguibles para la computación cuántica, la simulación y la metrología.
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