Organized by the Institute of Experimental Physics, University of Bialystok and the Institute of Atomic Energy, Swierk under the auspices of the European Crystallographic Association; Committee of Crystallography, the Polish Academy of Sciences; and the Polish Neutron Scattering Society The School is financially supported in part by the International Union of Crystallography; the European Crystallographic Association; the European Office of Aerospace Research & Development; the Ministry of Science and Information Society Technologies; the Warsaw University of Technology; and the University of Bialystok.
		From independent molecular processes and phase transitions to photo-induced co-operative phenomena Hervé Cailleau, France Topics A - Introduction - a small overview - light tuning of charge and/or spin molecular states and photo-switching in materials; - the time-scales: from trapped states to the ultra-fast world; - from independent molecular processes in femto-chemistry to photo-induced co-operative molecular processes in solids; - from independent coherent phonons to photo-induced displacive phase transitions; - pump-probe techniques and emergence of new experimental tools,... - scientific and technological challenges. B - Tools - co-operativity and phase transitions : instability and thermodynamics, broken symmetry and order parameter, molecular interactions and mechanisms, soft mode and Ising, mean field and beyond, domains and hysteresis, description of switchable systems,... - photo-induced co-operative phenomena: electronic excitation processes and structural relaxation, impulsive excitation of coherent atomic oscillations, out-of-equilibrium relaxation dynamics, beyond the two-temperatures model, non-thermal processes and coherent motions, self-amplification and self-organisation,... C - Future trends