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Espacio-tiempo de bits
1Department of Physics and Astronomy, University of British Columbia, 6224 Agricultural Road, Vancouver, BC V6T 1Z1, Canada.
Science (New York, N.Y.)
|October 9, 2020
Resumen
La gravedad cuántica
Área de la Ciencia:
- Física teórica
- La gravedad cuántica
- Teoría de la información cuántica
Sus antecedentes:
- La correspondencia anti-de Sitter/teoría de campo conforme (AdS/CFT) vincula la gravedad cuántica en dimensiones más altas con las teorías de campo cuánticas en dimensiones más bajas.
- En este marco, la geometría del espacio-tiempo y la física gravitacional están codificadas dentro de los estados cuánticos de un sistema no gravitacional.
Objetivo del estudio:
- Demostrar que el sistema no gravitacional en la correspondencia AdS/CFT puede ser reemplazado por una colección de sistemas que no interactúan.
- Proporcionar una nueva perspectiva sobre el surgimiento de la geometría del espacio-tiempo a partir del entrelazamiento cuántico.
Principales métodos:
- El estudio propone reemplazar el sistema no gravitacional único con una colección arbitrariamente grande de sistemas no interactuantes (bits).
- Estos bits están dispuestos en un estado altamente entrelazado para codificar la geometría del espacio-tiempo.
- La estructura propuesta se analiza utilizando las redes tensoriales.
Principales resultados:
- Se muestra que la geometría del espacio-tiempo surge de la estructura de entrelazamiento de estos grados fundamentales de libertad.
- La eliminación de este entrelazamiento conduce a la desintegración del espacio-tiempo.
- Los estados entrelazados que codifican el espacio-tiempo pueden ser representados efectivamente por redes tensoriales específicas.
Conclusiones:
- Esta construcción ofrece una demostración manifiesta del surgimiento del espacio-tiempo a partir del entrelazamiento cuántico.
- Proporciona una nueva perspectiva sobre la relación entre la información cuántica y la física gravitacional.
- Los hallazgos sugieren una nueva y poderosa forma de estudiar la gravedad cuántica utilizando conceptos de información cuántica y redes tensoriales.
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