Who: Iwo Bialynicki-Birula, Center for Theoretical Physics, Warsaw, Poland
Place: Donostia International Physics Center
Date: Wednesday, 20 February 2019, 12:00
All known solutions of the Dirac equation describing states of electrons endowed with angular momentum are very far from our notion of the electron as a spinning charged bullet because they are not localized in the direction of propagation. I will present analytic exact solutions, eigenstates of the total angular momentum component Mz , that come very close to this notion. These new solutions of the Dirac equation have also intricate topological properties similar to the hopfion solutions of the Maxwell equations.