# International Fall Workshop on GEOMETRY and PHYSICS

## With the support of:

### INLN, IUFM (Université de Nice Sophia-Antipolis)

ANR "Geometrie & Physique"

IMJ (Diderot Paris7,UPMC)

APC (Diderot Paris7)

LUTH & LERMA (Observatoire de Paris)

CNRS

Ministère de l'enseignement supérieur et de la recherche

# INLN Institut Non Linéaire de Nice (Nice Sophia-Antipolis University)

The INLN was created in 1991 as a multi-disciplinary research Institute regrouping mathematicians and physicists. During the first ten years of existence, the main research subject was Nonlinear Dynamics, with the participation of mathematicians, theoretical and experimental physicists. The INLN grew initially in all possible directions in terms of research subjects connected to Nonlinear Dynamics. Indeed, pure and applied mathematics, bifurcation theory, topology, field theory, statistical physics, turbulence, neuron networks, meteorology, liquid crystals, hydrodynamics, optics, atomic physics, chemistry, biology... coexisted during some time at the INLN. Today the INLN is formed by eight research teams :

1. Modeling and analysis of networks and complex systems

2. Bifurcations and Dynamical Systems

3. Statistical Physics

4. Fluid Mechanics

5. Spatio-temporal Dynamics of Optical Systems

6. Experimental approach to out-of-equilibrium phenomena

7. Mesoscopy with cold atoms

8. Theoritical physics and Mathematical physics

Several factors play a role in the actual structure of the INLN :

1. The natural evolution of the scientific research

2. The expertise already present at the INLN

3. The relevance that some research subjects have inside the scientific community and the CNRS

# IUFM (Nice Sophia-Antipolis University)

# ANR Géométrie et Physique

# IMJ (Diderot Paris7,UPMC)

# APC (Paris 7 University)

APC (AstroParticle and Cosmology) is a new Institute in Paris devoted to particle astrophysics and csomology. At a time where one expects a large amount of data in this| active field, it seemed apropriate to create a place where the different communities involved (astrophysicists, particle physicists and theorists) would work in close collaboration. This is the ambition of the APC Institute.

The scientific activities of APC are centered around three domains : High energy astrophysics, Cosmology, Neutrino, Theory, Data processing, Photodetection

# LUTH and LERMA (Observatoire de Paris)

Established in 1667, the Observatoire de Paris is the largest national centre for research in astronomy. It counts among its staff thirty per cent of all French astronomers, who carry out research in the institution’s seven laboratories. Located in the Paris, Meudon and Nançay sites, these are joint research units with the CNRS and often with major scientific universities in the Paris region.

Research carried out at the Observatoire de Paris covers the entire spectrum of contemporary astronomy and astrophysics: - the study of the Sun and the Sun-Earth relationship; - planets and planetary systems; - star formation and the interstellar medium; - galaxy formation and evolution; - astroparticles and cosmology; - space and time metrology; - history and philosophy of science

# CNRS (Centre National de la Recherche Scientifique)

# Ministère de l'enseignement supérieur et de la Recherche

# Ecole Normale Supérieure Paris (ENS)

The physics department at ENS has two essential missions, research and teaching. Its research activities are performed in five laboratories, covering a wide range of fundamental physics:

- The Laboratoire Kastler Brossel deals mainly with matter-field interaction, quantum optics and quantum information, laser cooled atoms and degenerate quantum fluids.
- The Laboratoire Pierre Aigrain works on condensed matter physics, mesoscopic systems and optical properties of semiconductors.
- The Laboratoire de physique statistique deals with complex systems, non-linear physics, wetting and biological system properties.
- The Laboratoire de physique théorique works on quantum field theory, statistical physics, particle physics and unification theories, disordered systems theory and applications to condensed matter, optimization and biophysics
- The Laboratoire de radioastronomie, part of the LERMA laboratory hosted at ENS, is focused on the observation and theoretical understanding of the large structures in the Universe (galactic magnetic fields...) Some research themes are addressed jointly by teams from different laboratories. This is particularly so for the application of physics to biological problems, a rapidly growing field at the department. There are also strong links with the other scientific departments of ENS. Detailed information on this thriving scientific activity can be found in the WEB sites of the laboratories.