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Interferometría continua de ondas de materia atrapadas en estructuras de banda de Floquet-Bloch mágicas

Xiao Chai1, Eber Nolasco-Martinez1, Xuanwei Liang1

  • 1Department of Physics, University of California, Santa Barbara, CA, USA.

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|February 9, 2026
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Resumen

Desarrollamos una plataforma de ingeniería Floquet tolerante al ruido para interferometría de átomos atrapados, lo que permite la detección de fuerza cuántica compacta y precisa. Este sistema robusto supera las limitaciones de los métodos tradicionales de caída libre.

Palabras clave:
interferometría de átomos atrapadosingeniería Floquetestructuras de banda mágicassensores de fuerza cuánticosmedición de precisión

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Área de la Ciencia:

  • Física cuántica
  • Física atómica
  • Medición de precisión

Sus antecedentes:

  • La interferometría de ondas de materia atrapadas promete sensores de fuerza compactos pero sufre de ruido inducido por la trampa.
  • Los interferómetros de átomos de caída libre tradicionales carecen de ruido de trampa pero son menos compactos.

Objetivo del estudio:

  • Desarrollar una plataforma intrínsecamente tolerante al ruido para la interferometría de átomos atrapados continuamente.
  • Demostrar un sensor de fuerza cuántico robusto contra el ruido de la trampa.

Principales métodos:

  • Utilizó oscilaciones de Bloch en el espacio de posición de un gas cuántico degenerado en una red óptica modulada en amplitud.
  • Diseñó estructuras de banda de Floquet-Bloch con divisores de haz de Landau-Zener y espejos de Bragg.
  • Identificó y caracterizó "estructuras de banda mágicas" para la insensibilidad al ruido.

Principales resultados:

  • Demostró un sensor de fuerza interferométrico de Mach-Zehnder basado en bandas de ingeniería Floquet.
  • Logró insensibilidad al ruido a las fluctuaciones de intensidad de la red a través de estructuras de banda mágicas.
  • Mostró diseños de interferómetros programables con características sintonizables, compactas y robustas.

Conclusiones:

  • Las plataformas de ingeniería Floquet ofrecen una solución prometedora para la interferometría de átomos atrapados tolerante al ruido.
  • Esta técnica permite el desarrollo de sensores de fuerza cuánticos avanzados con mayor estabilidad y versatilidad.