Topology via Spectral Projectors with Staggered Fermions

Understand

The spectral projectors method is a way to obtain a theoretically well posed definition of the topological susceptibility on the lattice.

• Up to now this method has been defined and applied only to Wilson fermions.
• The goal of this work is to extend the method to staggered fermions, giving a definition for the staggered topological susceptibility and testing it in the pure $SU(3)$ gauge theory.
• Besides, we also generalize the method to higher-order cumulants of the topological charge distribution.