Objective
In this project, I will develop modern theoretical tools for non-Lorentzian geometry to advance our understanding of gravity and holography. Einstein's theory of general relativity describes gravity in terms of the curvature of a Lorentzian spacetime geometry. A similar geometric description of non-relativistic Newtonian gravity has been known for a long time. However, we have only recently figured out how the dynamics of such Newton-Cartan geometry can be extracted from a systematic expansion of general relativity. This gives a new and exciting approach to extracting predictions from general relativity using a geometric interpolation.
I have done fundamental work on such geometric expansions of general relativity, both in the Newton-Cartan and in the opposite Carroll limit, which similarly leads to solvable subsectors. In this project, I will develop an initial-value formulation for the resulting actions and I will show that the associated initial-value problem is well-posed, opening a path to numerical simulations. Using similar limits in string theory, I will establish new solvable sectors of string theory on negatively curved spacetime that are relevant to top-down models of the holographic correspondence.
On the other hand, in the astrophysically relevant setting of approximately flat spacetime, holography is much less understood, in part because of the null structure on its boundary. The supervisor (Prof. Marios Petropoulos) and myself have developed complementary approaches to constructing Carroll field theories on such null boundaries. Building on this, I will construct concrete dual field theory models, which will allow me to make contact with the celestial holography program of which Prof. Puhm is a world expert. The Centre de Physique Thorique at cole Polytechnique is therefore the perfect place for me to unify these approaches to flat space holography and to work towards explicit constructions of top-down string theory models.
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
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-2022-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.
91128 PALAISEAU CEDEX
France
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.