Condensed Matter Physics Seminar

Manuel Arrayas, URJC, Madrid

Friday 28 June 2013, 1500-1600
C1 Physics Building

"Knots of light"

We present solutions of Maxwell's equations in vacuum, which have non-trivial topology: the topology of the field lines is that of the whole torus knots set. We will explain how to build such fields and discuss some of their physical properties. The motion of classical charges in one such field, and the mechanism of exchange of helicities will be also discussed. The torus-knotted fields may play a role in fundamental physics problems, but also could have applications in plasma confinement and other areas of physics where topology is important, such as defects on A-B interface of He3, in the solid state, and many more.