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A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
Published on: September 5, 2019
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Vórtices cuánticos de fotones fuertemente interactuados
Lee Drori1, Bankim Chandra Das1, Tomer Danino Zohar1
1Department of Physics of Complex Systems, Weizmann Institute of Science, Rehovot 7610001, Israel.
Science (New York, N.Y.)
|July 13, 2023
Resumen
Los investigadores crearon vórtices cuánticos utilizando las interacciones fotón-fotón en medios ópticos no lineales. Este avance permite una acumulación de fases más rápida, generando pares cuánticos vórtice-antivórtice y allanando el camino para las operaciones de lógica cuántica.
Área de la Ciencia:
- La óptica cuántica
- Óptica no lineal
- Defectos topológicos
Sus antecedentes:
- Los vórtices son defectos topológicos que surgen de la dinámica no lineal.
- Generar vórtices fotónicos normalmente requiere una fuerte no linealidad en la óptica clásica.
Objetivo del estudio:
- Para realizar vórtices cuánticos de fotones a través de fuertes interacciones fotón-fotón.
- Para investigar la formación de pares cuánticos vórtice-antivórtice y las interacciones de tres fotones.
Principales métodos:
- Utilizando un medio óptico cuántico no lineal.
- Observando la acumulación de fase en los fotones que se propagan.
- Analizando la topología de la función de onda de dos y tres fotones.
Principales resultados:
- Demostró la generación de vórtices cuánticos de fotones.
- Se ha observado la creación de pares cuánticos vórtice-antivórtice a partir de las interacciones de dos fotones.
- Interacciones de tres fotones confirmadas a través de líneas y anillos de vórtice.
Conclusiones:
- Las interacciones fotón-fotón en medios cuánticos no lineales pueden generar vórtices cuánticos.
- La topología de la función de onda impone un desplazamiento de fase condicional por fotón.
- Este fenómeno es un recurso potencial para las operaciones deterministas de lógica cuántica.
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