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Testing Cosmic Inflation and Reheating in the Very Early Universe

Objective

The aim of this cosmology proposal is to study the physical conditions that prevailed in the early Universe where a phase of accelerated expansion, “inflation”, took place. I will design a comprehensive pipeline to identify the early Universe models for which the data show the strongest preference. I also propose to use new methods to unveil quantum signals in inflationary observables and use inflation as a quantum laboratory on cosmological scales. I will also extend the range of current and future data sets that can be used to constrain inflation, and derive forecasts for future missions.

During inflation, vacuum quantum fluctuations are stretched to astrophysical scales where they subsequently seed the large-scale structures of the Universe. Since this mechanism occurs at energy scales many orders of magnitude greater than those accessible in particle physics experiments, inflation is among the most promising probes to test far beyond standard model physics. In particular, it is one of the only places in Physics where an effect based on General Relativity and Quantum Mechanics leads to predictions that can be tested experimentally, which opens interesting possibilities. However, hundreds of scenarios have been proposed and this requires us to develop new techniques and extend the available range of observations in order to identify the correct scenario. My proposal consists in roughly equal parts of: (i) designing a Bayesian numerical pipeline that includes multi-field effects and incorporates realistic reheating scenarios to test inflationary models; (ii) using new theoretical tools from Quantum Information Theory and Stochastic Inflation to detect quantum signatures in cosmological probes; (iii) including new data sets from Large Scale Structures and deriving forecasts for missions in which the host institution is involved. The proposed work is to be carried out in collaboration with leading experts in the appropriate fields from across Europe and beyond.

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.

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Programme(s)

Multi-annual funding programmes that define the EU’s priorities for research and innovation.

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.

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.

MSCA-IF-EF-ST - Standard EF

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Call for proposal

Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.

(opens in new window) H2020-MSCA-IF-2016

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Coordinator

CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS
Net EU contribution

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.

€ 132 944,85
Address
RUE MICHEL ANGE 3
75794 PARIS
France

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Region
Ile-de-France Ile-de-France Paris
Activity type
Research Organisations
Links
Total cost

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.

€ 185 076,00
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