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Relojes ópticos en el mar

Jonathan D Roslund1, Arman Cingöz2, William D Lunden2

  • 1Vector Atomic, Inc., Pleasanton, CA, USA. jon@vectoratomic.com.

Nature
|April 24, 2024
PubMed
Resumen
Este resumen es generado por máquina.

Los investigadores desarrollaron relojes ópticos compactos para plataformas móviles. Estos relojes avanzados ofrecen una alta precisión e insensibilidad ambiental, cruciales para la navegación y las futuras redes de cronometraje.

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Área de la Ciencia:

  • La física
  • Metrología
  • Tecnología cuántica

Sus antecedentes:

  • Los relojes ópticos de laboratorio logran una alta precisión (por debajo de 10-18 inexactitudes fraccionarias).
  • Los relojes ópticos transportables existentes tienen limitaciones en tamaño, sensibilidad ambiental y costo, lo que restringe su utilidad.
  • El tiempo preciso es crítico para la navegación, el monitoreo geofísico y las redes cuánticas.

Objetivo del estudio:

  • Desarrollar relojes ópticos compactos y respetuosos con el medio ambiente, adecuados para funcionar en plataformas móviles.
  • Demostrar la viabilidad del uso de relojes ópticos avanzados en entornos marítimos difíciles.

Principales métodos:

  • Desarrollo de un reloj óptico de 35 litros que integra un espectrómetro de yodo molecular, un peine de frecuencia de fibra y una electrónica de control.
  • Funcionamiento continuo y prueba de tres relojes de este tipo a bordo de un buque naval durante 20 días.

Principales resultados:

  • Los relojes ópticos desarrollados demostraron insensibilidad a las condiciones ambientales y funcionaron continuamente en el mar.
  • Los errores de sincronización acumulados fueron inferiores a 300 picosegundos por día.
  • Los relojes alcanzaron un rendimiento comparable al de los masers de hidrógeno activo, pero en una décima parte del volumen.

Conclusiones:

  • Este trabajo presenta un avance significativo en la tecnología de reloj óptico, permitiendo su despliegue en plataformas móviles.
  • La exitosa demostración marítima supera los desafíos históricos de la operación de relojes de alto rendimiento en el mar.
  • Esto allana el camino para futuras redes ópticas de cronometraje y sistemas de navegación mejorados.