A Chern-Simons transgression formula for supersymmetric path integrals on spin manifolds
Abstract
Earlier results show that the N = 1/2 supersymmetric path integral on a closed even dimensional Riemannian spin manifold (X,g) can be constructed in a mathematically rigorous way via Chen differential forms and techniques from non-commutative geometry, if one considers it as a current on the smooth loop space of X. This construction admits a Duistermaat-Heckman localization formula. In this note, fixing a topological spin structure on X, we prove that any smooth family of Riemannian metrics on X canonically induces a Chern-Simons current which fits into a transgression formula for the supersymmetric path integral. In particular, this result entails that the supersymmetric path integral induces a differential topological invariant on X, which essentially stems from the A-hat-genus of X.
Keywords
Cite
@article{arxiv.2111.12162,
title = {A Chern-Simons transgression formula for supersymmetric path integrals on spin manifolds},
author = {Sebastian Boldt and Sergio Luigi Cacciatori and Batu Güneysu},
journal= {arXiv preprint arXiv:2111.12162},
year = {2023}
}