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Statistical physics
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This theme is historically one of the first research area of the laboratory, and it actually gathers activities being conducted in several groups. It is characterized by frequent and fruitful collaborations between theoreticians and experimentalists within the laboratory.
Statistical physics is devoted to the study of the collective and macroscopic behavior of systems composed of a large number of elementary entities that interact one with the other. One speaks of "complex system" when the dynamics, or the structures that appears within the system, exhibit a rich variety of behaviors, while the microscopic entities the system is made of, and the interactions between these entities, are a priori simple. It may be noticed that the sensitivity to the initial conditions, as well as the large number of possible evolutions, play a major role in the emergence of non-trivial collective behaviors in such systems.
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Theoretical Physics
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Stimuli-responsive materials
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To go beyond material characterization, we design functional materials with tailored properties.
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Physics of Complex Matter
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Structure interactions with turbulence
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Fluid Dynamics, Environment, Climate
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Thèmes de recherche
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Synthetic and biological active matter
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We investigate the properties of synthetic and biological active matter
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Physics of life and active matter
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Fluctuation theorems and thermal noise
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In out of equilibrium or mesoscopic systems, fluctuations play an important role and provide a unique tool to probe the underlying physics. Our team develops various experiments to measure directly this noise and test statistical physics approaches : fluctuations theorems, nano-mechanics, confined phase transitions…
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Waves, Flows and Fluctuations
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Topological Physics
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Theory & Models
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Nonstationary signal processing
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The group has a strong history of studying nonstationary signal processing, ranging from theoretical analalysis or development of approaches such as time-frequency methods, data-driven decompositions (e.g., Empirical Mode Decomposition), practical characterization of stationarity and non-stationarity. Many applications of these methods have been put forward as well by the group.
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SIgnals, SYstems & PHysics
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Transport across nanopores and nanofluidics
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We investigate transport properties of biological molecules and complexes across nanopores, as well as nanofluidics
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Physics of life and active matter
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Fluid turbulence, quantum fluids
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La turbulence des fluides et le traitement du signal sont des domaines intimement liés. D'une part, les mesures expérimentales d'un écoulement turbulent, et les simulations numériques des équations de Navier-Stokes, ont bénéficié des techniques et développements de la science du signal. D'une autre part, la nécessité de prendre en compte l'aspect multidimensionel des grandeurs liées à la turbulence, et la volonté de construire des modèles aléatoires capables de rendre en compte des statistiques particulières observées dans les écoulements, est un territoire fécond pour le développement d'approches multivariées des signaux. L'équipe Sisyphe depuis longtemps s'attèle à développer ce domaine pluridisciplinaire.
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SIgnals, SYstems & PHysics
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Research Topics
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Waves and Flows
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Fluid Dynamics, Environment, Climate
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Thèmes de recherche
