3 papers
hep-lat2024
Regulated chiral gauge theory and the strong CP problem
David B. Kaplan, Srimoyee Sen
Four-dimensional chiral gauge theory can be formulated as the boundary theory on a five-dimensional manifold in a manner that may be realized on a finite lattice. There are interes…
hep-lat2023
Weyl fermions on a finite lattice
David B. Kaplan, Srimoyee Sen
The phenomenon of unpaired Weyl fermions appearing on the sole 2n-dimensional boundary of a (2n+1)-dimensional manifold with massive Dirac fermions was recently analyzed in a compa…
hep-lat2023
Chiral gauge theory at the boundary between topological phases
David B. Kaplan
I demonstrate how chiral fermions with an exact gauge symmetry can appear on the d-dimensional boundary of a finite volume (d+1)-dimensional manifold, without any light mirror part…