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Olivier Coquand

Assistant professor
Université de Perpignan Via Domitia (Perpignan, France)
After a PhD prepared at the Laboratoire de Physique Théorique de la Matière Condensée (LPTMC, Sorbonne université, Paris, France) under the supervision of Dominique Mouhanna, I joined the group of Matthias Sperl at the Institut für Materialphysik in Weltraum (Deutsches Zentrum für Luft- und Raumfahrt, Köln, Germany), and then the group of Ludovic Berthier at the Laboratoire Charles Coulomb (Université de Montpellier, Montpellier, France), before getting a position at the Université de Perpignan Via Domitia at the LAboratoire de Modélisation Pluridisciplinaire et Simulations.

My research activity focuses on the study of anomalous deformation behaviour in a wide variety of complex systems that can be classified somewhere in an intermediary situation between ideal solids and liquids. Such systems include granular systems, soft matter, non-Newtonian liquids, bidimensional crystals or plasmas for example.

More precisely, my main specialty resides in the use of recent tools of statistical physics and quantum and statistical field theory to describe strongly interacting systems of many particles. These include the mode-coupling approximation, and a number of approaches based on the renormalisation group. Such frameworks 
are particularly adapted to the description of the behaviour of liquids which are dense enough for the weak-coupling types of approximations to break down, and yet not strongly coupled enough to allow for simple expansions around a well identified ground state like crystalline solids.

For more details, please visit the Research page of the website.
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