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Quobly anuncia un hito clave para la computación cuántica tolerante a fallos
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Quobly

Dec 10, 2024, 01:07 ET

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GRENOBLE, Francia y SAN FRANCISCO, 10 de diciembre de 2024 /PRNewswire/ -- Quobly, una importante empresa emergente francesa dedicada a la computación cuántica, ha informado de que la tecnología FD-SOI puede servir como plataforma escalable para la computación cuántica comercial, aprovechando las fábricas tradicionales de fabricación de semiconductores y la línea piloto de I+D de CEA-Leti.

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Quobly device based on FD-SOI undergoing testing & measurements
Quobly device based on FD-SOI undergoing testing & measurements

La industria de semiconductores ha desempeñado un papel fundamental a la hora de permitir que las computadoras clásicas se escalen a un coste razonable; tiene el mismo potencial transformador para las computadoras cuánticas, lo que las hace comercialmente escalables y competitivas en términos de costes. Los qubits de spin de silicio son excelentes para lograr una computación cuántica tolerante a fallos y a gran escala, registrando velocidades de reloj en el rango de µsec, fidelidad superior al 99 % para operaciones de compuerta de uno y dos qubits y tamaños de celdas unitarias incomparablemente pequeños (en centésimas de 100 nm²).

Para capitalizar décadas de inversiones en infraestructura de semiconductores, Quobly ha adoptado un modelo fabless. Se centra en FD-SOI, una tecnología CMOS disponible comercialmente fabricada por líderes globales como STMicroelectronics, GlobalFoundries y Samsung, como plataforma para la computación cuántica.

El trabajo de Quobly, del que se informó el 9 de diciembre de 2024 en IEDM, aborda los desafíos críticos para escalar los sistemas cuánticos. Con CEA-Leti, CEA-IRIG y CNRS, Quobly ha demostrado los componentes básicos clave para una computadora cuántica que aprovecha la FD-SOI comercial:

  • Operaciones a baja temperatura y caracterización de sus rendimientos digitales y analógicos, siguiendo las pautas de diseño de circuitos
  • Operaciones de un solo qubit utilizando qubits de spin de huecos y electrones utilizando la línea piloto de I+D de CEA-Leti. Esta plataforma ambipolar optimiza el rendimiento del sistema, aprovechando los largos tiempos de coherencia de los electrones para la memoria, así como la fuerte interacción spin-órbita de los huecos para un procesamiento rápido de datos
  • Control de carga en GF 22FDX comercial para definir aún más una celda estándar para una compuerta de dos qubits

Los logros clave incluyen:

  • Electrónica de control criogénico: ganancia de voltaje de hasta 75 dB, niveles de ruido de 10-11 V²∙μm²/Hz y variabilidad de voltaje umbral de 1,29 mV∙μm.
  • Qubits de spin ambipolares: cointegración de qubits de huecos y electrones en tecnología FD-SOI, logrando una velocidad de manipulación de 1 μs para huecos y un tiempo de coherencia de 40 μs (eco de Hahn) para electrones.
  • Celda estándar de puerta de dos qubits: demostración de operaciones de doble punto cuántico con FD-SOI comercial. Un paso hacia los sistemas cuánticos comerciales

Este trabajo posiciona a FD-SOI como esencial para los procesadores cuánticos escalables y establece a Quobly como líder en computación cuántica rentable y tolerante a fallos. Al cointegrar componentes cuánticos y clásicos en la misma plataforma, Quobly está dando forma a arquitecturas QSoC escalables.

Acerca de Quobly 
Fundada en 2022 en Grenoble, Quobly es pionera en computación cuántica tolerante a fallos con qubits semiconductores. Combinando investigación de vanguardia con producción industrial, Quobly apunta a sistemas escalables con millones de qubits. La empresa recaudó 19 millones de euros en 2023, estableciendo un récord europeo en el sector cuántico. Visite www.quobly.io.

Contacto: [email protected]

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