Objective
Inflation provides a natural mechanism to account for the origin of cosmic structures. The generation of primordial inhomogeneities during inflation is usually computed as the result of the (gravitationally-induced) spontaneous creation of quanta from an initial vacuum state. However, as recently pointed out by Agullo and Parker, when the corresponding stimulated creation is considered, the characteristics of the state of the universe at the onset of inflation are not diluted by the inflationary expansion and can be imprinted in the distribution of primordial inhomogeneities. The objective of this research project is to provide a detailed analysis of the consequences of the stimulated creation effect during inflation.
We will analyze the consequences of having a totally arbitrary initial state describing metric perturbations at the onset of inflation for the predictions of inflation regarding the Cosmic Microwave Background (CBM) anisotropies and galaxy distribution. We will pay special attention to the effects concerning non-gaussianites. This analysis will provide a characterization of the pattern expected from a generic non-vacuum state and, on the other hand, will show what information about that state can be extracted from observations.
On the other hand, the stimulated creation effect opens a window towards the observation of pre-inflationary effects in the CMB and galaxy distribution. The objective of this part of the research project is to work out in detail the predictions arising from quantum gravity proposals of the early universe, and the potential that forthcoming observations have to constrain those proposals.
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 astronomy physical cosmology
- natural sciences physical sciences theoretical physics
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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.
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.
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.
FP7-PEOPLE-2011-IEF
See other projects for this call
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.
Coordinator
CB2 1TN CAMBRIDGE
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.