Objective
Progress in quantum gravity over the past decades has been to a large extent triggered by the holographic principle, the proposal that bulk regions of spacetime in quantum gravity are dual to non-gravitational, quantum theories living on the boundary. While a precise realization in AdS string theory was found by Maldacena, the universal scaling law of black hole entropy with area suggests that similar dualities should exist more generally, for example in our own universe which is flat to a good degree of approximation. Nevertheless, an understanding of the nature of the holographic duality in flat space is still missing.
The goal of this proposal is to study aspects of a recently proposed two-dimensional holographic formulation of four-dimensional asymptotically flat quantum gravity, broadly defined as any theory that reduces to general relativity at long distances. In this framework, the fundamental observables live on a two-dimensional sphere at infinity and are in one-to-one correspondence with bulk scattering amplitudes. These new observables known as celestial amplitudes compute scattering in a basis of asymptotic boost as opposed to the usual energy momentum eigenstates and obey a wide range of constraints. During this fellowship I will investigate two main aspects of flat space holography. On the one hand, I will study the celestial imprints of black hole scattering by computing celestial amplitudes with massive particles and analyzing their symmetry properties. On the other hand I will exploit the flat space limit of AdS holography and apply conformal bootstrap techniques to derive new constraints on the observables of four-dimensional asymptotically flat gravity. These results will provide insights into non-perturbative aspects of gravity in asymptotically flat spacetimes and will establish new connections among different fields and communities including asymptotic symmetries, scattering amplitudes and holography.
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.
- natural sciences physical sciences relativistic mechanics
- natural sciences physical sciences quantum physics
- natural sciences physical sciences astronomy astrophysics black holes
- natural sciences physical sciences theoretical physics
- social sciences law
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Keywords
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
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.1.2 - Marie Skłodowska-Curie Actions (MSCA)
MAIN PROGRAMME
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Topic(s)
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.
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.
Funding Scheme
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.
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-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships
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Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
(opens in new window) HORIZON-MSCA-2021-PF-01
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Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.
1012WX Amsterdam
Netherlands
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.