Le Laboratoire Ondes et Milieux Complexes – LOMC recevra le Pr. Christopher H. Greene (Purdue University, West La Fayette, Indiana, USA), le vendredi 6 décembre à 14h00. À l’occasion de cette visite, un séminaire sera donné par ce dernier autour de « La grande idée de Fermi et ses implications : les états quantiques étranges de quelques particules”.
Le Pr. Greene est invité via le programme NormandieSup Mobilité Entrante et l’Institut pour l’Energie, Propulsion et Environnement (IEPE, Normandie Université).
Résumé du séminaire de Christopher Henry Greene : I will discuss one of Enrico Fermi’s biggest ideas that is now a main theoretical tool in many areas of theoretical physics. The big idea relates to the fact that when two particles collide at very low energy, there is an energy content in the collision that can be quantified and used to make predictions about the quantum mechanical behavior of a few-body or many-body system. One of the applications I will discuss is how we have used this Big Idea of Fermi to predict a new class of huge excited states of molecules with only 2 or a few atoms, having very unusual properties, such as having huge chemical bond distances and electric dipole moments that are orders of magnitude larger than in a conventional ground state molecule. I will also discuss some of the recent studies that have observed these unusual molecular states experimentally.
