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Enredo multipartito entre giros individuales en el diamante

P Neumann¹, N Mizuochi, F Rempp

¹3.Physikalisches Institut, Universität Stuttgart, Pfaffenwaldring 57, D-70550 Stuttgart, Germany.

Science (New York, N.Y.)

|June 7, 2008

Resumen

Los investigadores crearon robustos estados cuánticos enredados bipartitos y tripartitos utilizando núcleos de 13C en diamante a temperatura ambiente. Estas correlaciones cuánticas de alta calidad persisten durante milisegundos, permitiendo operaciones cuánticas avanzadas.

Área de la Ciencia:

La física cuántica es la física cuántica.
Ciencia de los materiales ciencia de los materiales.
La ciencia de la información cuántica es una ciencia cuántica.

Sus antecedentes:

La tecnología cuántica práctica requiere un entrelazamiento robusto a temperatura ambiente.
El desarrollo de estados entrelazados estables es crucial para la computación y la comunicación cuántica.

Objetivo del estudio:

Para demostrar la creación de estados cuánticos enredados bipartitos y tripartitos.
Para lograr un entrelazamiento de alta calidad a temperatura ambiente utilizando un registro cuántico específico.

Principales métodos:

Utilizando núcleos individuales de 13C dentro de una red de diamantes como un registro cuántico.
Controlar los espines nucleares a través de acoplamiento hiperfino con el electrón de un centro de defecto de vacío de nitrógeno.
Caracterizar las correlaciones cuánticas y su persistencia en el tiempo.

Principales resultados:

Se crearon con éxito estados cuánticos enredados bipartitos y tripartitos.
Se lograron correlaciones cuánticas de alta calidad.
Se ha demostrado la persistencia del enredo en una escala de tiempo de milisegundos a temperatura ambiente.

Conclusiones:

Un robusto entrelazamiento a temperatura ambiente es alcanzable en un pequeño registro cuántico de núcleos de 13C.
La calidad y la duración del entrelazamiento demostradas son adecuadas para operaciones cuánticas sofisticadas.
Este trabajo promueve el desarrollo de tecnologías cuánticas prácticas.

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