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Content archived on 2024-05-29

Inflation, dark energy and string theory

Objective

For decades it was believed that matter and radiation are the most dominant form of energy in the universe and that as a result the universe is decelerating. However, recent experiments show that the universe is actually accelerating and thus it is dominated by an unusual form of energy, known as dark energy.

This form of energy induces a repulsive gravitational force which leads to the acceleration of the universe. Understanding dark energy from a particle physics perspective is a long-standing problem, usually referred to as the cosmological constant problem. Even more recently, direct experimental evidence was found for a period of acceleration in the early universe, known as cosmic inflation. While the fact that the universe is currently accelerating came as a surprise, cosmic inflation was in fact predicted about 25 years ago as a resolution to various problems with the standard big-bang model. Moreover, inflation plays a crucial role in providing the seed for the large-scale structure in the universe.

This raises the natural question: Is the current cosmic acceleration related to the early universe cosmic inflation? Since the acceleration in the early universe was much faster than it is now, it seems hard to come up with a precise relation between the two periods of accelerations. Very recently I proposed a model that addresses this issue. The model leads to many intriguing predictions that could be studied in experiments in the near future. The main objective of my proposal is to study in detail various aspects of the model and to explore in depth its predictions. In particular I would like to study phenomenological aspects of the model, such as large-scale formation, baryogenesis and its possible relation to neutrinophysics. Another direction that I wish to explore is possible realizations of the model in string theory.

Fields of science (EuroSciVoc)

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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)

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.

Call for proposal

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

FP6-2004-MOBILITY-12
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.

EIF - Marie Curie actions-Intra-European Fellowships

Coordinator

TEL-AVIV UNIVERSITY
EU contribution
No data
Address
Kaplun Blg.
TEL-AVIV
Israel

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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.

No data
My booklet 0 0