PreprintCC BY 4.0arXiv
Heterotic moduli, the double extension and the alpha'^2 metric
Abstract
We compute the heterotic moduli-space metric through α'2 for backgrounds admitting a smooth α'→0 limit. The Kaehler potential is unchanged when written in an appropriate field basis suggested by the ten-dimensional supersymmetry equations, while the metric receives α'2 corrections. We discuss this and clarify the roles of the extension bundle, F-terms, the D-terms and the string-derived moduli space metric.
Related
- Flat connections on moduli spaces I: Local (1,0)-extension of the DHS connection
- A Metric Extension Theorem
- The metric extension problem under positive and negative curvature conditions
- Double-Phase Neumann Problems with Variable Growth on Metric Measure Spaces
- Long-time existence and uniqueness of the heterotic G2 flow
BibTeX
@misc{mcorist2026heterotic,
title = {{Heterotic moduli, the double extension and the alpha'^2 metric}},
author = {Jock McOrist and Qianhe Yin},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2607.15817},
eprint = {2607.15817},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2607.15817},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Heterotic moduli, the double extension and the alpha'^2 metric
AU - Jock McOrist
AU - Qianhe Yin
PY - 2026
DA - 2026/09/17
PB - arXiv
DO - 10.48550/arxiv.2607.15817
UR - https://arxiv.org/abs/2607.15817
AB - We compute the heterotic moduli-space metric through α'^2 for backgrounds admitting a smooth α'→0 limit. The Kaehler potential is unchanged when written in an appropriate field basis suggested by the ten-dimensional supersymmetry equations, while the metric receives α'^2 corrections. We discuss this and clarify the roles of the extension bundle, F-terms, the D-terms and the string-derived moduli space metric.
ER -