activity
20192026
most citedAtiyah-Patodi-Singer index on a lattice

13 citations · 15 across the 9 of their papers we have counts for

collaborators

9 papers

hep-lat2026

Symmetric Mass Generation for Domain-Wall Fermions

Sho Araki, Hidenori Fukaya, Tetsuya Onogi +1

We report the first numerical examination of symmetric mass generation (SMG) for domain-wall fermions. Our simulation on a two-dimensional Euclidean lattice computes the path-integ…

hep-lat2026

How to formulate the topological invariant of Majorana fermion on the lattice

Sho Araki, Hidenori Fukaya, Tetsuya Onogi +1

Topological invariants and their associated anomalies have played a crucial role in understanding low-energy phenomena in quantum field theories. In lattice gauge theory, the stand…

math.DG2026

Capturing the Atiyah-Patodi-Singer index from the lattice

Shoto Aoki, Hajime Fujita, Hidenori Fukaya +4

We construct a formulation of the Atiyah-Patodi-Singer index of Dirac operators in lattice gauge theory for domains with compact boundaries in a flat torus. The key idea is to expl…

hep-lat2025

The Arf-Brown-Kervaire invariant on a lattice

Sho Araki, Hidenori Fukaya, Tetsuya Onogi +1

We propose a lattice formulation of the Arf-Brown-Kervaire (ABK) invariant which takes values in . Compared to the standard -valued index, the ABK invaria…

hep-th2025★ 2 cited

-theoretic computation of the Atiyah(-Patodi)-Singer index of lattice Dirac operators

Shoto Aoki, Hidenori Fukaya, Mikio Furuta +3

We show that the Wilson Dirac operator in lattice gauge theory can be identified as a mathematical object in -theory and that its associated spectral flow is equal to the index.…

hep-lat2025

invariant of massive Wilson Dirac operator and the index

Shoto Aoki, Hidenori Fukaya, Mikio Furuta +3

We revisit the lattice index theorem in the perspective of -theory. The standard definition given by the overlap Dirac operator equals to the invariant of the Wilson Dirac o…

hep-th2024

Anomalies and D-branes in the Dabholkar-Park background

Hiroki Wada, Satoshi Yamaguchi

We consider D-branes in the Dabholkar-Park (DP) background, a d orientifold theory obtained by gauging symmetry in the type IIB string theory compactified on a circle. Using ano…

math.KT2024

The index of lattice Dirac operators and -theory

Shoto Aoki, Hidenori Fukaya, Mikio Furuta +3

We mathematically show an equality between the index of a Dirac operator on a flat continuum torus and the invariant of a lattice Dirac operator known as the Wilson Dirac opera…

hep-lat2019★ 13 cited

Atiyah-Patodi-Singer index on a lattice

Hidenori Fukaya, Naoki Kawai, Yoshiyuki Matsuki +4

We propose a non-perturbative formulation of the Atiyah-Patodi-Singer(APS) index in lattice gauge theory, in which the index is given by the invariant of the domain-wall Dirac…