Project description
Cosmic horizons and quantum gravity: bridging theory and observation
Explaining the universe’s accelerating expansion within a theoretically consistent framework remains an unsolved problem. Light from the most distant objects takes time to reach Earth, creating ‘cosmic horizons’ – space-time boundaries to observable limits. String theory offers candidate solutions. Determining which of these are viable requires understanding the theoretical constraints imposed by quantum gravity. With the support of the Marie Skłodowska-Curie Actions programme, the QuantumHorizons project aims to investigate the theoretical implications of cosmic horizons and the observational signatures that distinguish viable quantum gravity models. Leveraging dynamical systems methods and consistent string-theoretic solutions, QuantumHorizons will examine theory and models on topics including large field excursions, coupled dark energy-dark matter systems and the universe.
Objective
My project will explore the realization of cosmic horizons within quantum gravity. Understanding the existence of long-lived cosmic acceleration in ultraviolet-complete effective field theories is an open problem. Cosmological observations urge high-energy physics to settle this debate theoretically, as well as on the model-building side.
In the search for string-theoretic solutions exhibiting long-lived cosmic acceleration, my study will focus on two aspects: the theoretical implications of cosmic horizons, and the distinctive phenomenological features of effective theories selected by consistent models of quantum gravity. Through advanced methods from dynamical systems and knowledge of asymptotic corners of the string landscape, my work will include theories with large field excursions for scalars with kinetic couplings to pseudo-scalars, as well as models with direct couplings between dark energy and dark matter, cosmological stasis, early kination, and the axiverse.
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-2025-PF
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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.
NG7 2RD Nottingham
United Kingdom
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.