Video Experimental Relacionado
Updated: Jun 30, 2025
09:23
Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
Published on: May 30, 2014
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Estados estables de muchos cuerpos correlacionados cuánticos a través de la disipación de ingeniería
X Mi1, A A Michailidis2, S Shabani1
1Google Research, Mountain View, CA, USA.
Science (New York, N.Y.)
|March 21, 2024
Resumen
La disipación de ingeniería prepara estados cuánticos entrelazados para simulaciones. Este método ofrece una alternativa escalable a la evolución unitaria para procesadores cuánticos ruidosos, lo que permite la exploración de modelos cuánticos complejos.
Área de la Ciencia:
- Física Cuántica
- Física de la materia condensada
- Ciencia de la información cuántica
Sus antecedentes:
- Los depósitos disipativos diseñados pueden guiar a los sistemas cuánticos de muchos cuerpos a estados estables correlacionados útiles.
- Estos estados son valiosos para las simulaciones cuánticas, particularmente en la superconductividad a alta temperatura y el magnetismo cuántico.
Objetivo del estudio:
- Para demostrar la preparación de estados de baja energía en sistemas cuánticos de muchos cuerpos utilizando la disipación de ingeniería.
- Explorar la escalabilidad y la efectividad de este enfoque en procesadores cuánticos superconductores.
Principales métodos:
- Utilizó hasta 49 qubits superconductores para acoplar un sistema cuántico a los qubits auxiliares disipadores.
- Los estados de baja energía preparados del modelo de campo transversal de Ising y el transporte explorado en el modelo cuántico de Heisenberg.
Principales resultados:
- Correlaciones cuánticas de largo alcance observadas y alta fidelidad al estado fundamental (0,86) para 18 qubits en el punto crítico en un sistema 1D.
- Detectamos información mutua que se extiende más allá de los vecinos más cercanos en un sistema 2D.
- Explorado con éxito el transporte cuántico por acoplamiento a depósitos con diferentes potenciales químicos.
Conclusiones:
- La disipación de ingeniería es un método viable y escalable para preparar estados de muchos cuerpos entrelazados.
- Esta técnica proporciona una alternativa prometedora a la evolución unitaria para las simulaciones cuánticas en procesadores cuánticos ruidosos.
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