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Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
Published on: August 2, 2019
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Electrodinámica cuántica guía de ondas con átomos gigantes artificiales superconductores
Bharath Kannan1,2, Max J Ruckriegel3, Daniel L Campbell3
1Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA, USA. bkannan@mit.edu.
Nature
|July 31, 2020
Resumen
Los investigadores han desarrollado un nuevo
Área de la Ciencia:
- La electrodinámica cuántica
- Física del estado sólido
- La óptica cuántica
Sus antecedentes:
- La aproximación dipolo es estándar para las interacciones luz-materia, tratando los átomos como puntos.
- Esta aproximación falla para los "átomos gigantes" donde el tamaño del átomo se acerca a la longitud de onda de la luz.
- Los experimentos existentes con átomos gigantes usan qubits superconductores y sondas de una sola frecuencia.
Objetivo del estudio:
- Para explorar una nueva arquitectura para la realización de átomos gigantes.
- Para permitir acoplamientos sintonizables de guías de ondas atómicas y espectros de acoplamiento de ingeniería.
- Para demostrar interacciones libres de decoherencia entre múltiples átomos gigantes.
Principales métodos:
- Acoplamiento de pequeños átomos a una guía de ondas en múltiples ubicaciones discretas.
- Utilizando una arquitectura alternativa más allá de los qubits superconductores.
- Diseñar el diseño del dispositivo para controlar el espectro y las relaciones de acoplamiento.
Principales resultados:
- Realizó con éxito átomos gigantes en una nueva arquitectura de estado sólido.
- Se han logrado acoplamientos sintonizables de guía de ondas atómicas con grandes relaciones de encendido y apagado.
- Interacciones demostradas sin decoherencia entre múltiples átomos gigantes a través de modos de guía de ondas.
Conclusiones:
- Esta arquitectura de átomos gigantes supera las limitaciones de la aproximación del dipolo.
- Permite el cambio in situ entre configuraciones de qubits protegidos y emisores.
- Abre nuevas vías para las simulaciones cuánticas y la generación de fotones no clásicos.
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