Évènements

Modified Bethe Ansatz for models without U(1) symmetry Samuel Belliard (IPhT, CEA, Saclay) I will present a modified version of the algebraic Bethe ansatz (MABA) that allows to characterize the eigenvalues and the eigenstates of spins chains without U(1) symmetry.  In the case of the XXX Heisenberg spins chain on the circle with a twisted […]

Extreme value statistics in a gas of 2D charged particles Bertrand Lacroix-à-chez-Toine (LPTMS, Université Paris-Sud)   We study a system of N charged particles in two dimensions with Coulomb logarithmic repulsion and confined in an external symmetric potential. At the inverse temperature of interest β = 2, the positions of the charges form a 2D