Supersymmetric lattice theories on curved space

Fuente: arXiv
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Main Authors: Berenstein, David, Catterall, Simon
Format: Preprint
Published: 2025
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author Berenstein, David
Catterall, Simon
author_facet Berenstein, David
Catterall, Simon
contents We show how to construct Hamiltonian lattice theories with one exact supersymmetry on arbitrary triangulations of curved space in any number of dimensions. Both bosons and fermions satisfy discrete Kähler-Dirac equations. The quantization of the fermions proceeds by imposing conventional anti-commutation relations while the bosons require a modification of the usual canonical commutator. On regular lattices we construct parity, time reversal and translation-by-one (shift) symmetries. We argue that the latter are generically non-invertible symmetries. We also show how to couple these degrees of freedom to background gauge fields which leads to a theory with enhanced supersymmetry.
format Preprint
id arxiv_https___arxiv_org_abs_2509_08885
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Supersymmetric lattice theories on curved space
Berenstein, David
Catterall, Simon
High Energy Physics - Theory
High Energy Physics - Lattice
We show how to construct Hamiltonian lattice theories with one exact supersymmetry on arbitrary triangulations of curved space in any number of dimensions. Both bosons and fermions satisfy discrete Kähler-Dirac equations. The quantization of the fermions proceeds by imposing conventional anti-commutation relations while the bosons require a modification of the usual canonical commutator. On regular lattices we construct parity, time reversal and translation-by-one (shift) symmetries. We argue that the latter are generically non-invertible symmetries. We also show how to couple these degrees of freedom to background gauge fields which leads to a theory with enhanced supersymmetry.
title Supersymmetric lattice theories on curved space
topic High Energy Physics - Theory
High Energy Physics - Lattice
url https://arxiv.org/abs/2509.08885