Trivialization of the gravitational Green-Schwarz transformation in the non-relativistic limit of string theory

Fuente: arXiv
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Autore principale: Lescano, Eric
Natura: Preprint
Pubblicazione: 2025
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author Lescano, Eric
author_facet Lescano, Eric
contents We show that the gravitational Green-Schwarz (GS) transformation becomes trivial in the non-relativistic (NR) limit of ten-dimensional heterotic supergravity with four-derivative corrections. This constitutes an important step towards establishing the trivialization of the GS mechanism in this limit. In this work, we perform a NR expansion of the Kalb-Ramond field and identify the finite Green-Schwarz transformation in this limit, which can be interpreted as a non-covariant $SO(8)$ transformation. We then construct an explicit field redefinition such that the redefined two-form is invariant under this symmetry. This result is compared with the previously reported trivialization of the gauge GS mechanism under the same limit. Both field redefinitions can be implemented simultaneously, and the associated Chern-Simons terms are exact, arising directly from the redefinition structure, and leading to a trivial Bianchi identity. These results support the expectation that anomaly cancellation becomes automatic in the NR regime, and therefore we discuss their potential implications.
format Preprint
id arxiv_https___arxiv_org_abs_2507_07172
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Trivialization of the gravitational Green-Schwarz transformation in the non-relativistic limit of string theory
Lescano, Eric
High Energy Physics - Theory
We show that the gravitational Green-Schwarz (GS) transformation becomes trivial in the non-relativistic (NR) limit of ten-dimensional heterotic supergravity with four-derivative corrections. This constitutes an important step towards establishing the trivialization of the GS mechanism in this limit. In this work, we perform a NR expansion of the Kalb-Ramond field and identify the finite Green-Schwarz transformation in this limit, which can be interpreted as a non-covariant $SO(8)$ transformation. We then construct an explicit field redefinition such that the redefined two-form is invariant under this symmetry. This result is compared with the previously reported trivialization of the gauge GS mechanism under the same limit. Both field redefinitions can be implemented simultaneously, and the associated Chern-Simons terms are exact, arising directly from the redefinition structure, and leading to a trivial Bianchi identity. These results support the expectation that anomaly cancellation becomes automatic in the NR regime, and therefore we discuss their potential implications.
title Trivialization of the gravitational Green-Schwarz transformation in the non-relativistic limit of string theory
topic High Energy Physics - Theory
url https://arxiv.org/abs/2507.07172