Speaker
Description
New exact pulsed and spinning self-gravitating solutions for the four dimensional SU(2) Einstein-non-linear-sigma model and the Einstein-Skyrme model both minimally coupled to the Maxwell field will be presented. These solutions describe mesonic tubes with finite energy and angular momentum and which are asymptotically gyratons. We show that the found solutions are free of curvature invariants or matter distribution singularities. First, using the SU(2) non-linear sigma model coupled to General Relativity and the Maxwell field, asymptotically flat spinning pulsed tubes will be constructed. Then, the model will be promoted to the Skyrme theory, showing that the inclusion of the Skyrme term necessarily requires the space-time structure to be asymptotically de Sitter.
