TY  - EJOUR
AU  - Berkowitz, Evan
AU  - Cherman, Aleksey
AU  - Jacobson, Theodore
TI  - Exact lattice chiral symmetry in 2d gauge theory
IS  - arXiv:2310.17539
M1  - FZJ-2023-05410
M1  - arXiv:2310.17539
PY  - 2023
N1  - v2: added references and improved discussion of discrete rotational invariance
AB  - We construct symmetry-preserving lattice regularizations of 2d QED with one and two flavors of Dirac fermions, as well as the `3450' chiral gauge theory, by leveraging bosonization and recently-proposed modifications of Villain-type lattice actions. The internal global symmetries act just as locally on the lattice as they do in the continuum, the anomalies are reproduced at finite lattice spacing, and in each case we find a sign-problem-free dual formulation.
LB  - PUB:(DE-HGF)25
DO  - DOI:10.34734/FZJ-2023-05410
UR  - https://juser.fz-juelich.de/record/1019463
ER  -