Projektbeschreibung
Per Quantengravitationstheorie schwarze Löcher erforschen
Beobachtungen an schwarzen Löchern, die sich aus den Überresten massereicher, abgestorbener Sterne bilden, lassen erahnen, dass diese einst als abstrakt und theoretisch angesehenen Objekte in Wirklichkeit reguläre Bestandteile unseres Kosmos sind. Der Physik mangelt es immer noch am theoretischen Verständnis der Ereignishorizonte schwarzer Löcher sowie dessen, was sich hinter diesen abspielt. So besteht beispielsweise starkes Interesse daran herauszufinden, wohin genau die ursprüngliche Information nach dem Auflösen des schwarzen Lochs verschwindet. Das EU-finanzierte Projekt BHHQG wird sich mit Fragen dieser Art auseinandersetzen, indem es holografische Modelle der niederdimensionalen Schwerkraft untersucht. Die Forschenden werden der kürzlich auf Quantenebene exakt gelösten Jackiw-Teitelboim-Gravitationstheorie folgen, um das Verständnis der Ereignishorizonte schwarzer Löcher und des Informationsparadoxons schwarzer Löcher zu verbessern.
Ziel
"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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Wissenschaftliches Gebiet
Schlüsselbegriffe
Programm/Programme
- HORIZON.1.1 - European Research Council (ERC) Main Programme
Thema/Themen
Finanzierungsplan
HORIZON-ERC - HORIZON ERC GrantsGastgebende Einrichtung
9000 Gent
Belgien