I'm broadly interested in understanding the large scale structure of space and time.
At present, my main research activity is in unveiling the nature of dark energy,
the mysterious cause of the accelerating expansion of the universe.
I'm adressing this most important and fascinating challenge by exploring
whether dark energy is a new kind of fluid that evolves dynamically with the
expansion of the universe or it is instead the result of an unexpected breakdown,
on large cosmological scales, of the standard theory of gravity.
I pursue this goal primarily by studying the physical effects of dark energy
on the time evolution and the spatial clustering of matter fluctuations in the universe.
I'm also interested in the phenomenology of dark matter and in the dynamical and statistical modelling of the large-scale distribution of galaxies.
A more detailed description of the things that I'm thinking about, and of the
research activities of the cosmology group that I lead at the center
of theoretical physics of Marseille,
can be found here.
In addition to theoretical work I am also a member of several large experimental teams.
I mostly contribute to these missions by producing calculations or tools which can be used to
analyse data or by engeneering out-of-the box methods for testing the physical foundations of the
standard model of cosmology and constraining the value of its constitutive parameters.
The projects in which I'm currently involved are
The VIPERS project
The EUCLID mission
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