Project description
New theoretical approaches aid in decoding the quantum nature of black holes
Leveraging holographic correspondence, a well-established theoretical framework, scientists have made important progress in understanding the elusive quantum properties of black holes. Bridging the gap between quantum mechanics and general relativity, this framework treats black holes as holograms. However, this correspondence has been mostly explored in anti-de Sitter spacetimes, which exhibit negative curvature. The ERC-funded CeleBH project aims to apply holographic correspondence to asymptotically flat spacetimes, which are characterised by lack of curvature at infinity, namely at regions far from black holes. Researchers will combine celestial holography, which posits that quantum gravity in flat space can be described by a celestial conformal field theory living on the sphere at infinity, and infinite-dimensional symmetries that appear close to black hole event horizons.
Objective
Black holes are at the root of the most striking puzzles that arise when attempting to combine quantum mechanics and general relativity; they are therefore thought to be key to a formulation of a theory of quantum gravity. In recent years, progress in our understanding of the elusive quantum nature of black holes has been made thanks to the so-called holographic correspondence, which has provided theoretical physicists with a powerful tool to study quantum gravity. However, these methods are so far only fully developed for anti-de Sitter spacetimes, whereas understanding realistic black holes would require to develop a holographic correspondence for asymptotically flat spacetimes.
The aim of this project is to make major steps towards a holographic description of quantum gravity in asymptotically flat spacetimes, and to address some of the unresolved key issues in black hole physics, especially in understanding the mysterious origin of their vast entropy. To do so, I propose to combine two novel emergent ideas: The first is a new approach to holography in flat spacetimes called celestial holography, which proposes that quantum gravity in flat space can be described by a celestial conformal field theory living on the sphere at infinity. The second is based on the recent discovery, in my previous works, of the existence of intriguing infinite-dimensional symmetries that appear close to black holes’ event horizon. The infinite set of asymptotic conservation laws in the presence of horizons is awaiting to be unraveled, as it will reveal unexplored constraints on information flow for black holes in flat spacetimes.
Thanks to this unique combination of powerful approaches based on symmetry principles, my research project aims at addressing the challenge of a holographic formulation of spacetimes that include realistic black holes, such as the ones we observe in the sky.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
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Keywords
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Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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HORIZON.1.1 - European Research Council (ERC)
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Topic(s)
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Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
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Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
HORIZON-ERC - HORIZON ERC Grants
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Call for proposal
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Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
(opens in new window) ERC-2022-STG
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34136 Trieste
Italy
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