Centre de Physique Théorique

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Group “Fundamental Interactions”

The Cosmology Team is comprised of researchers having an expertise in Cosmology, General Relativity, Quantum Field Theory and Particle Physics who collaborate and share contracts with several national and international groups of theoreticians, cosmologists, astronomers, astrophysicists and particle physicists.

Context of our researches. Flooded for over a decade with a massive quantity of high quality data, cosmology has finally become a fertile domain of research, the ideal ground where predictions from fundamental physics, particle physics and general relativity can be tested and falsified. This abundance of information has recently led to the discovery of phenomena and physical signals that were completely unexpected, such as the accelerated expansion of the universe, as well as phenomena that were expected since long, but undetected so far, such as gravitational waves.

The core of our activities is oriented along three main research axes:

  • Understanding the physics of the large scale structure of the universe by studying how the structures grow in different regimes using statistical tools. We want to gauge the contribution of the different forms of matter (standard and dark) and we aim at extracting the values of fundamental observables of the standard model of cosmology.
  • Unveiling the nature of dark energy by studying the rich phenomenology of the acceleration of the universe. The goal is to refine our knowledge of the dark sector of the universe either empirically, by exploring whether the standard description of gravity, the general theory of relativity, fails on large (infrared) cosmic scales, either theoretically, by exploring which non-standard model of gravity might generalize the current paradigm.
  • Assessing the consistency of the physical foundations of the model of cosmology by challenging fundamental assumptions adopted in cosmological inferences, in order to secure the conceptual basis of the paradigm used in interpreting cosmological observations.

Directory of Members

Baratta Philippe PhD candidate
Bel Julien University faculty
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Fernandez-Cid Adrian PhD candidate
Kuntz Adrien PhD candidate
Marinoni Christian University faculty
Chef de l’équipe « Cosmologie »
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Piazza Federico University faculty
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Schücker Thomas University faculty
Chef du Groupe « Interactions fondamentales »
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Taxil Pierre University faculty
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Virey Jean-Marc University faculty
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List of Publications

48 results
Journal article
Federico Piazza, Heinrich Steigerwald, Christian Marinoni
Phenomenology of dark energy: exploring the space of theories with future redshift surveys
Journal of Cosmology and Astroparticle Physics, Institute of Physics (IOP), 2014, 2014 (05), Issue 05, article id. 043, pp. 〈10.1088/1475-7516/2014/05/043〉
Journal article
Julien Bel, C. Marinoni, B. R. Granett, L. Guzzo, J. A. Peacock, E. Branchini, O. Cucciati, S. De La Torre, A. Iovino, W. J. Percival, H. Steigerwald, U. Abbas, C. Adami, S. Arnouts, M. Bolzonella, D. Bottini, A. Cappi, J. Coupon, I. Davidzon, G. De Lucia, A. Fritz, P. Franzetti, M. Fumana, B. Garilli, O. Ilbert, J. Krywult, V. Le Brun, O. Le Fèvre, D. Maccagni, K. Małek, F. Marulli, H. J. Mccracken, L. Paioro, M. Polletta, A. Pollo, H. Schlagenhaufer, M. Scodeggio, L. A. M. Tasca, R. Tojeiro, D. Vergani, A. Zanichelli, A. Burden, C. Di Porto, A. Marchetti, Y. Mellier, L. Moscardini, R. C. Nichol, S. Phleps, M. Wolk, G. Zamorani
The VIMOS Public Extragalactic Redshift Survey (VIPERS)
Astronomy and Astrophysics - A&A, EDP Sciences, 2014, 563, Volume 563, id.A37, 17 pp. 〈10.1051/0004-6361/201321942〉
Journal article
Julien Bel, Christian Marinoni
Determination of the abundance of cosmic matter via the cell count moments of the galaxy distribution (1)
Astronomy and Astrophysics - A&A, EDP Sciences, 2014, 563, Volume 563, id.A36, 11 pp. 〈10.1051/0004-6361/201321941〉
Journal article
M. Cristoforetti, F. Di Renzo, G. Eruzzi, A. Mukherjee, C. Schmidt, L. Scorzato, C. Torrero
An efficient method to compute the residual phase on a Lefschetz thimble
Physical Review D, American Physical Society, 2014, 89 (11), pp.114505. 〈10.1103/PhysRevD.89.114505〉
Journal article
Thomas Schucker, Andre Tilquin
Torsion, an alternative to the cosmological constant?
International Journal of Modern Physics D, World Scientific Publishing, 2012, 21 (13), pp.1250089. 〈10.1142/S0218271812500897〉
Preprint, Working paper
Andre Tilquin, Thomas Schucker
Maximal symmetry at the speed of light
Journal article
Andre Tilquin, Thomas Schucker
Torsion, an alternative to dark matter?
General Relativity and Gravitation, Springer Verlag, 2011, 43 (11), pp.2965-2978. 〈10.1007/s10714-011-1222-6〉
Journal article
Christian Marinoni, Adeline Buzzi
A geometric measure of dark energy with pairs of galaxies
Nature, Nature Publishing Group, 2010, 468 (7323), 〈10.1038/nature09577〉
48 results