Topology of chiral superfluid: skyrmions, Weyl fermions and chiral anomaly
G. E. Volovik
Low Temperature Laboratory, Department of Applied Physics, Aalto University, PO Box 15100, FI-00076 Aalto, Finland
Landau Institute for Theoretical Physics RAS, 119334 Moscow, Russia
Abstract
Chiral anomaly observed in the
chiral superfluid 3He-A is the result of
the combined effect of the real space and momentum space topologies. This
effect incorporates several topological charges in the extended
( k, r)-space, which is beyond the
conventional chiral anomaly in the relativistic systems.