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Soft Matter and interfaces

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Prochain Séminaire de la FIP :
Accéder au programme

Retrouvez toutes les informations pour vos stages :
Stages L3
Stages M1 ICFP

Actualités : Séminaire de Recherche ICFP
du 14 au 18 novembre 2022 :

Retrouvez le programme complet

Contact - Secrétariat de l’enseignement :
Tél : 01 44 32 35 60
enseignement@phys.ens.fr

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Lectures : Sylvie Cohen-Addad and Frédéric Restagno
Exercises : Raphaël Jeanneret and Alessandro Siria
ECTS : 6
Language of instruction : french and english
Key words : scales, capillarity, wetting, fluctuations, entropic forces, brownian motion
Exam : written

Description

In this course, we introduce the major concepts of soft condensed matter, with a focus on fluid interfaces. Soft condensed matter can be defined as the wide class of complex fluids that exhibit multi-hierarchical structural organization spanning the molecular scale up to the macroscopic scale. These complex fluids present unconventional (even paradoxical) physical properties that emerges due to coupling processes between these different length scales. For instance, mixing air and water (with surfactants) produces an aqueous foams which, although it is solely constituted of fluid phases, behaves as a solid phase that can “melt” under a small mechanical load.

Soft condensed matter physics deals with the properties of a great variety of materials : From the “historical” systems – colloids, polymers, granular materials, foams, emulsions,…-, more recent biological materials and living systems - vegetal, animal -, up to the most advanced development in active matter, self-assembly or supramolecular origamis... Therefore, soft matter is at the cross-over between several fields such as physics, chemistry, material science… which confers to it an essential role in the development of interdisciplinary fundamental physics.

Along the course, we focus on the role of the interfaces encountered in soft matter (for instance, they are at the origin of the solid behavior of a foam), starting from the definition of surface free energy and exploring a few of them among its countless consequences. Fundamental concepts of interfaces and soft matter are introduced – adsorption, wetting, entropic forces, osmosis, …. - as well as the tool box required to describe soft matter properties. The tools combine thermodynamics, mechanics of continuum media (capillarity, wetting, hydrodynamics, elasticity, …) and statistical physics (phase transitions, fluctuations, Langevin equation, …). The ensemble draws a panorama of soft condensed matter linking its macroscopic properties to its microscopic founding principles.

Accès rapides

Prochain Séminaire de la FIP :
Accéder au programme

Retrouvez toutes les informations pour vos stages :
Stages L3
Stages M1 ICFP

Actualités : Séminaire de Recherche ICFP
du 14 au 18 novembre 2022 :

Retrouvez le programme complet

Contact - Secrétariat de l’enseignement :
Tél : 01 44 32 35 60
enseignement@phys.ens.fr

r>