Descripción del proyecto
Aplicar la teoría de la gravedad cuántica para estudiar los agujeros negros
Las observaciones de los agujeros negros —que se forman a partir de los restos de estrellas masivas muertas— sugieren que estos objetos, antes considerados abstractos y teóricos, son en realidad elementos normales de nuestro cosmos. Los físicos aún no tienen conocimientos teóricos sobre los horizontes de los agujeros negros y lo que ocurre tras ellos. Por ejemplo, están muy interesados en averiguar exactamente cómo sale la información inicial tras la evaporación del agujero negro. El equipo del proyecto BHHQG, financiado con fondos europeos, abordará estas cuestiones mediante el estudio de modelos holográficos de gravedad dimensional más baja. Los investigadores aplicarán la teoría de la gravedad de Jackiw-Teitelboim —resuelta hace poco con exactitud a nivel cuántico— para comprender mejor los horizontes de los agujeros negros y la paradoja de la información de los agujeros negros.
Objetivo
"The project ""Black Hole Horizons in Quantum Gravity"" aims for an in-depth investigation of black holes and the information paradox in the context of quantum gravity. Due to the recent breakthroughs in astronomy, these exotic objects have moved from the purely theoretical realm to being abundant in our physical universe. Surprisingly, our theoretical understanding of them is insufficient to even in principle understand their horizons and what happens behind them. Our approach to tackle these questions is to combine a lower-dimensional approach with holography as a guide. Within this framework, substantial breakthroughs were made in the Sachdev-Ye-Kitaev models, and their low-energy gravitational description in terms of Jackiw-Teitelboim gravity. This model is exactly solvable to a large degree, and many important lessons on black hole physics and quantum gravity can be studied quantitatively and exactly.
Our goals within this project span across two lines.
Firstly, we will apply quantum gravitational results on the Jackiw-Teitelboim gravity model to address aspects of the black hole information puzzle in a quantitative way and probe the deep questions on black hole horizons largely building on our detailed knowledge of this model. In particular, we will calculate correlation functions of local infalling bulk observables, and assess the effect of quantum gravitational corrections to evaporation. Secondly, it is vital to investigate the universality of the set of techniques and methods we use in Jackiw-Teitelboim gravity. We will do this by pursuing several roads simultaneously (dilaton gravity models, 2d string theory, the original Sachdev-Ye-Kitaev model, supersymmetric models and 3d pure gravity). Armed with these results, we will extrapolate to higher dimension and in particular to our physical universe making contact with the first objective.
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Ámbito científico
Palabras clave
Programa(s)
- HORIZON.1.1 - European Research Council (ERC) Main Programme
Régimen de financiación
HORIZON-ERC - HORIZON ERC GrantsInstitución de acogida
9000 Gent
Bélgica