Konwersatorium im. Leopolda Infelda

In recent years, angular momentum has become a valuable resource that extends our ability to transmit information and also to increase the usefulness of beams in carrying various “mechanical” tasks. Even though the Maxwell and Dirac equations are well known, the description of beams has been treated with the use of approximations that have hidden important aspects of relativistic beams. In my talk, I will give a simple recipe to produce exact solutions of relativistic equations describing the photon and electron beams and I will show that these solutions exhibit intricate properties not seen in the textbook, plane wave solutions.