Theory Group Seminars

Ricardo Heras "Classical counterparts of quantum phases"

Europe/Rome
Description
In this talk I obtain topological nonlocal electromagnetic angular momenta that are the classical counterparts of the Aharonov-Bohm, Dual-Aharonov-Bohm, Aharonov-Casher and He-McKellar-Wilkens phases. These quantum phases are connected with their classical electromagnetic angular momenta counterparts via a generic linear relation. This suggests an approach to find new quantum phases by first identifying their classical counterparts. Using this approach, I derive a new quantum phase that is duality-invariant. This is the phase that accumulates a dyon upon encircling a dual solenoid enclosing electric and magnetic fluxes. I show the phase is topological because it depends on the number of windings the dyon carries out around the dual solenoid and is independent of the shape of the trajectory. I argue that the phase is nonlocal because there is no force acting on the dyon and then the electric and magnetic fluxes have no local consequences at any point of the trajectory.