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Controlar la dinámica cuántica de muchos cuerpos en matrices de átomos impulsados por Rydberg

D Bluvstein1, A Omran1,2, H Levine1

  • 1Department of Physics, Harvard University, Cambridge, MA 02138, USA.

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|February 26, 2021
PubMed
Resumen
Este resumen es generado por máquina.

Los investigadores estabilizaron las cicatrices cuánticas de muchos cuerpos en los qubits que interactúan usando conducción periódica. Este método controla la dinámica cuántica compleja y muestra el potencial para las aplicaciones de la ciencia de la información cuántica.

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Área de la Ciencia:

  • La física cuántica
  • Sistemas de muchos cuerpos
  • Dinámica cuántica

Sus antecedentes:

  • El control de la dinámica cuántica de no equilibrio en sistemas de muchos cuerpos es difícil debido a la termialización.
  • Las interacciones en los sistemas cuánticos a menudo conducen a una propagación caótica en el espacio de Hilbert.

Objetivo del estudio:

  • Investigar la dinámica de no equilibrio después de apagados rápidos en sistemas de qubits fuertemente interactuantes.
  • Explorar métodos para estabilizar las cicatrices cuánticas de muchos cuerpos.

Principales métodos:

  • Utilizó un simulador cuántico programable con matrices de átomos de Rydberg.
  • Conducción periódica aplicada a un sistema de muchos cuerpos de 3 a 200 qubits.
  • Estudió sistemas en una y dos dimensiones espaciales.

Principales resultados:

  • Estabilización demostrada de reactivaciones coherentes vinculadas a cicatrices cuánticas de muchos cuerpos.
  • Se observó una respuesta subarmónica robusta que se asemeja a un orden de tiempo cristalino discreto.
  • Mapeó la dinámica del espacio de Hilbert, la geometría, los diagramas de fase y la dependencia del tamaño del sistema.

Conclusiones:

  • La conducción periódica ofrece una nueva forma de dirigir dinámicas complejas en sistemas de muchos cuerpos.
  • Este control de la dinámica cuántica tiene aplicaciones potenciales en la ciencia de la información cuántica.