Position: Professor - Researcher

e-mail: marinoni@cpt.univ-mrs.fr

Research Interest:
I am Professor of Physics at Aix-Marseille University (since 2008) and Head of the Cosmology Group at CPT (since 2011). My research focuses on the large-scale structure of the universe, particularly the phenomenology of the late universe, aiming to test the coherence of cosmology's foundational principles, including the cosmological principle and Einstein's field equations. I am interested in addressing inconsistencies between theory and observations, while also exploring alternative scenarios that extend beyond the standard cosmological model. 

Position: Professor - Researcher

e-mail: piazza@cpt.univ-mrs.fr

Research Interest:

Most of my research interests originate from trying to understand the possible mechanisms behind cosmological accelerations. There is indeed evidence for two of them, one very primordial—inflation— and one at late times and still ongoing—dark energy. As gravity is attractive in presence of normal matter, this topic forces you to better understand gravity itself and how it can be possibly modified. In this respect, the theoretical constraints are very tight. General relativity is the only Lorentz invariant theory for a massless spin two particle. As a consequence, the dynamics of the metric field can be modified only by the addition of other light degrees of freedom. Recently I have also considered the possibility that large quantum fluctuations in the metric field could play a role in the description of cosmic accelerations. 

Position: Chaire d’Excellence (tenure-track professor) - Researcher

e-mail: mancarella@cpt.univ-mrs.fr

Research Interest:
My research focuses on leveraging gravitational-wave observations and surveys of the large-scale structures of the Universe to probe the Universe’s expansion history and test General Relativity on cosmological scales. From foundational work on the Effective Theory of Dark Energy, I have later transitioned to using data from gravitational waves emitted by compact binary mergers, both independently and combined with galaxy surveys. I also contribute to the development of next-generation gravitational-wave observatories. My work intersects with gravitational-wave and multimessenger astronomy, gravitational-wave population studies, Bayesian inference techniques, and machine learning. I am an active member of the Virgo collaboration, the Einstein Telescope collaboration, and the Euclid consortium.

Website

Position: Professor - Researcher

e-mail: bel@cpt.univ-mrs.fr

Research Interest:

My research activities are centered around the study of the large-scale structure of the universe in order to understand cosmic acceleration and the nature of dark matter. In practice, I focus on extracting cosmological information, testing the concordance model of cosmology or verifying the fundamental assumptions made to interpret data. This can be achieved using the distribution of galaxies over cosmological volumes. Thus, I work at various levels, theory, simulated data and observations. 

Position: Professor - In charge of the Pedagogical and Digital transformation mission of the faculty of sciences at AMU - General Secretary of UNISCIEL

e-mail: virey@cpt.univ-mrs.fr

Research Interest:

My topics of interest are the determination of the cosmological parameters and the characterisation of the dark energy properties. In particular, I focus on testing various models of dark energy and modified gravity using new observables and cosmic probes by developing original combined analysis approaches.

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Position: Postdoc

e-mail: viola.DE-RENZIS@univ-amu.fr

Research Interest:

I am a postdoctoral researcher at Aix-Marseille University. My research concerns the study of gravitational waves, with a particular focus on the dynamics of binary black holes, including subdominant spin effects such as precession and orbital eccentricity, as well as the application of machine learning and Bayesian inference techniques to real and simulated gravitational-wave catalogs. 

Currently, my work is primarily centered on forecasting the capabilities of third-generation detectors in population analyses. I aim to understand what properties of the underlying astrophysical populations of black holes and neutron stars can be inferred and with what precision. As part of the Einstein Telescope collaboration, this work will contribute to the preparation for future gravitational-wave observations.

Position: Postdoc

e-mail: bera@cpt.univ-mrs.fr

Research Interest:
My research focuses on extracting the distribution of binary black hole mergers at cosmological scales to probe cosmic expansion history. I develop statistical tools aiming to combine data from gravitational wave detections and electromagnetic observations such as galaxy surveys with the ultimate goal of understanding the evolution of the universe. My broader research interests include, but are not limited to, testing the nature of dark matter/dark energy with gravitational wave propagation, waveform systematics in gravitational-wave data analysis and gravitational wave memory. Currently, I am a member of the LIGO-Virgo-KAGRA collaboration, Einstein Telescope collaboration and LISA consortium.

Position: Postdoc

e-mail: hu@cpt.univ-mrs.fr

Research Interest:

My research interests encompass the field of quantum gravity, which explores the intersections between gravitational theory and quantum field theory. I am particularly focused on modified gravity and black hole physics.

Specifically, my work focuses on false vacuum decay triggered by black holes, the scattering phenomenology of black holes, the dynamics of accelerating black holes, and black hole thermodynamics and

chemistry. I am also interested in gravitational waves, will delve into more into this research area.

Position: Postdoc

e-mail: giordano.CINTIA@univ-amu.fr

Research Interest:
My research activity focuses on quantum effects in classical backgrounds, with applications to quantum field theory in curved space-times and interacting condensates. I aim to understand whether quantum corrections can influence the long-term dynamics of cosmologically relevant systems and uncover new phenomenological insights.  Also, I am interested in exotic theories of dark matter, focusing on the cosmological and astrophysical consequences of dark matter superfluidity. 

Position: Postdoc

e-mail: kalbouneh@cpt.univ-mrs.fr

Research Interest:

My research explores the local universe without relying on the assumptions of the standard model of cosmology or any specific symmetry. I investigate "cosmographic parameters" within a general spacetime framework to identify deviations from the standard model and explore potential paths beyond it. In parallel with advancing theoretical studies in this field, I analyze recent observational data sets to place constraints on these deviations.

Position: PhD student

e-mail: agapito@cpt.univ-mrs.fr

Research Interest:

My research will focus on gravitational-wave cosmology, large-scale and systematic-free inference techniques for gravitational-wave astronomy, and next-generation gravitational-wave experiments.  

On the one hand, I will contribute to the advancement of statistical data analysis methods to infer the Hubble constant from gravitational waves addressing the issue of scalability to larger catalogs and that of the numerical stability of the analysis, to apply the results to the upcoming new observations of the LIGO-Virgo experiments expected in the next years. 

On the other hand,  as a member of the  Einstein Telescope collaboration, I will study the applicability of current techniques to future gravitational wave data and determine to which extent future experiments can provide answers to the confirmation of the validity of General Relativity to describe cosmology.

Position: PhD student

e-mail: pedrotti@cpt.univ-mrs.fr

Research Interest:

My research focuses on cosmology, particularly on combining gravitational wave data and galaxy surveys to constrain key cosmological parameters. My work aims to contribute to developing this new and complementary way to study the universe: the cross-correlation between galaxies and gravitational waves, to deepen our understanding of the universe. For this reason I am a member of both the Einstein Telescope collaboration and the Euclid consortium.

Position: PhD student

e-mail: sarma@cpt.univ-mrs.fr

Research Interest:
I work in theoretical cosmology, focusing on modified metrics to explore beyond the standard model of cosmology. It includes developing covariant cosmographic techniques and analyzing geodesic bundles to gain deeper insights into the structure and evolution of spacetime.

Position: PhD student

e-mail: vareilles@cpt.univ-mrs.fr

Research Interest:
I investigate the connection between the “Wheeler-deWitt” framework and the standard cosmological perturbation theory in describing the low-energy physics of the early universe.

Position: PhD student

e-mail: taskov@cpt.univ-mrs.fr

Research Interest: I previously worked on the consequences of quantum geometry fluctuations on diffeomorphism invariance. Right now I'm interested in chaotic models for non-perturbative quantum effects in gravity, the dynamics of the geometry of the near horizon region of zero temperature rotating black holes, and here and there the nature of the black hole interior.