2000 character limit reached
Chiral gauge theory at the boundary between topological phases
Published 3 Dec 2023 in hep-lat, cond-mat.str-el, and hep-th | (2312.01494v3)
Abstract: 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 partners. The condition for the d-dimensional boundary theory to be local is that gauge anomalies cancel and that the volume be large. This can likely be achieved on a lattice and provides a new paradigm for the lattice regularization of chiral gauge theories.
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