# On Heterotic/Type I Duality in d=8

Source: [On Heterotic/Type I Duality in d=8](<https://www.sota2.com/research/paper/68fa24ab2c2a3760193a764b>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-24T09:25:30.179Z

Authors: K. Foerger

Published: 1998-12-17T18:30:57.000Z

## Abstract

We discuss heterotic corrections to quartic internal U(1) gauge couplings and check duality by calculating one-loop open string diagrams and identifying the D-instanton sum in the dual type I picture. We also compute SO(8)^4 threshold corrections and finally R^2 corrections in type I theory.

## Recorded benchmark results

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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/hep-th/9812154>)

[PDF](<https://arxiv.org/pdf/hep-th/9812154.pdf>)