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DEFT SIGNED

Dark energy, non-linearites and effective theories

Total Cost €

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EC-Contrib. €

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Partnership

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Project "DEFT" data sheet

The following table provides information about the project.

Coordinator
COMMISSARIAT A L ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES 

Organization address
address: RUE LEBLANC 25
city: PARIS 15
postcode: 75015
website: www.cea.fr

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country France [FR]
 Project website https://www.universite-paris-saclay.fr/en/node/10259
 Total cost 173˙076 €
 EC max contribution 173˙076 € (100%)
 Programme 1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
 Code Call H2020-MSCA-IF-2014
 Funding Scheme MSCA-IF-EF-ST
 Starting year 2015
 Duration (year-month-day) from 2015-10-01   to  2017-09-30

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    COMMISSARIAT A L ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES FR (PARIS 15) coordinator 173˙076.00

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 Project objective

The objective of this project is improving substantially our understanding of the acceleration of the Universe by developing novel effective techniques and semi-analytical methods for non-linear cosmological perturbation theory that will be applied to the data of upcoming high precision surveys. The accelerated expansion of the Universe was first detected in 1998 with Type Ia supernova data, and today there is ample evidence for it from various other observations such as the cosmic microwave background radiation (CMB) and the distribution of galaxies at large scales. We call dark energy the mysterious force that drives the acceleration of the Universe and understanding its origin is one of the major problems in cosmology of our time. The high precision of the near-future probes designed for elucidating the nature of dark energy needs to be matched with very accurate theoretical predictions, in particular concerning non-linear effects in cosmological perturbation theory. Developing efficient methods to compute these effects is a crucial requirement for the interpretation of the future dark energy data. I will apply the methods of effective field theories, that have been widely successful in many areas of physics, to develop new tools for describing dark matter and dark energy perturbations in the linear and non-linear regimes. I will combine these tools with state-of-the-art forecasting techniques to determine the prospects for the detection of dark energy parameters from future large scale structure data (specifically from Euclid) in combination with CMB data from Planck.

 Publications

year authors and title journal last update
List of publications.
2017 Ballesteros, Guillermo; Redondo, Javier; Ringwald, Andreas; Tamarit, Carlos
Unifying inflation with the axion, dark matter, baryogenesis and the seesaw mechanism
published pages: , ISSN: 0031-9007, DOI: 10.3204/PUBDB-2017-00981
Physical review letters 118(7), 071802(2017). doi:10.1103/PhysRevLett.118.071802 2 2019-06-13
2017 Guillermo Ballesteros and Marco Taoso
Primordial black hole dark matter from single field inflation
published pages: , ISSN: 2470-0010, DOI:
Physical Review D 2019-06-13
2016 Guillermo Ballesteros, Denis Comelli, Luigi Pilo
Massive and modified gravity as self-gravitating media
published pages: , ISSN: 2470-0010, DOI: 10.1103/PhysRevD.94.124023
Physical Review D 94/12 2019-06-13
2016 Guillermo Ballesteros, Denis Comelli, Luigi Pilo
Thermodynamics of perfect fluids from scalar field theory
published pages: , ISSN: 2470-0010, DOI: 10.1103/PhysRevD.94.025034
Physical Review D 94/2 2019-06-13
2016 Guillermo Ballesteros, Carlos Tamarit
Radiative plateau inflation
published pages: , ISSN: 1029-8479, DOI: 10.1007/JHEP02(2016)153
Journal of High Energy Physics 2016/2 2019-06-13
2017 Guillermo Ballesteros, Javier Redondo, Andreas Ringwald, Carlos Tamarit
Standard Model—axion—seesaw—Higgs portal inflation. Five problems of particle physics and cosmology solved in one stroke
published pages: 001-001, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2017/08/001
Journal of Cosmology and Astroparticle Physics 2017/08 2019-06-13
2017 Guillermo Ballesteros, Adrián Carmona, Mikael Chala
Exceptional composite dark matter
published pages: , ISSN: 1434-6044, DOI: 10.1140/epjc/s10052-017-5040-1
The European Physical Journal C 77/7 2019-06-13

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