A construction of lattice chiral gauge theories
Rajamani Narayanan, Herbert Neuberger
TL;DR
This paper introduces a novel construction for lattice chiral gauge theories that overcomes previous no-go theorems by using an auxiliary fermionic system, preserving key features like anomaly-related symmetry violations.
Contribution
It presents a new method for formulating lattice chiral gauge theories that maintains essential physical properties and avoids known theoretical limitations.
Findings
Avoids no-go theorem constraints
Preserves anomaly-related symmetry violations
Faithfully reproduces chiral fermion features
Abstract
Path integration over Euclidean chiral fermions is replaced by the quantum mechanics of an auxiliary system of non--interacting fermions. Our construction avoids the no--go theorem and faithfully maintains all the known important features of chiral fermions, including the violation of some perturbative conservation laws by gauge field configurations of non--trivial topology.
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