L’AGENDA CHIMIE PARISTECH - PSL

The biophysics of plant morphogenesis   Arezki Boudaoud from Ecole Polytechnique   The seminar will take place in  person in the Gulliver library and by zoom at the link below: What sets the size and form of organisms is still, by large, an open question. During this talk, I will aim at a broad audience…

Dr. Simion Beldean from Babes Bolei University (Cluj Napoca, Romania),  currently present in the CBI/LSABM, will present his research work, focused on the use of GCxGC for the analysis of complex environmental samples, during a meeting that will take place on Monday 20th September, at 14h. This meeting will occur in the LSABM library (F2.09)…

From Superfluids to Mott Insulators with Dipolar Excitons By François Dubin, INSP Paris Semiconductor excitons are composite bosons made by the Coulomb attraction between electrons and holes. Enforcing a spatial separation between these carriers provides a well oriented electric dipole to excitons, which then become model dipolar quasi-particles to explore collective quantum phenomena in the solid-state. In…

Controlling interactions in real space across the lengthscales: love, hate and criticality Paddy Royall   Polymers, liquid crystals, surfactants, and colloidal dispersions form the four historic pillars of soft matter. For physicists, colloids were a relatively late entry into the field, driven in no small way by the seminal work of Peter Pusey and Bill…

Responsive microgels: from individual systems to their collective properties Jérôme Crassous, Institute of Physical Chemistry, RWTH Aachen University,52074 Aachen, Germany Abstract: Although poly(N-isopropylacrylamide) microgels have been widely used as model systems for soft colloids, their properties are still far to be completely understood. This stems from their heterogeneous structure strongly differing from an idealized…

Instabilities and geometry of growing tissues Doron Grossman, Collège de France   The vertex model is a discrete often used to described cellular media, where elastic energy depends on the difference of cells' actual area and perimeter from a reference values. Cells are allowed to change neighbors via di fferent topological transition - including division,…

Instabilities and geometry of growing tissues   Doron Grossman (Collège de France)   Abstract: The vertex model is a discrete often used to described cellular media, where elastic energy depends on the difference of cells' actual area and perimeter from a reference values. Cells are allowed to change neighbors via di fferent topological transition -…

Bad metal behavior from slow collective excitations  By Simone Fratini, Institut Néel, Grenoble   Scattering of charge carriers by slow degrees of freedom can drive an electronic system away from normal transport behavior, causing anomalously large resistivities. This phenomenon relies on the idea that the same localization corrections that make the conductivity vanish in disordered…