On type IIB vacua with varying coupling constant

Berglund, P.; Klemm, Albrecht; Mayr, P.; Theisen, Stefan

doi:10.1016/S0550-3213(99)00420-4

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On type IIB vacua with varying coupling constant

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Theisen, Stefan
Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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Citation

Berglund, P., Klemm, A., Mayr, P., & Theisen, S. (1999). On type IIB vacua with varying coupling constant. Nuclear Physics B, 558(1-2), 178-204. doi:10.1016/S0550-3213(99)00420-4.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0013-5822-D

Abstract

We describe type IIB compactifications with varying coupling constant in d = 6,7,8,9 dimensions, where part of the ten-dimensional SL(2,the ring of integers) symmetry is broken by a background with γ1(n)orγ(n) monodromy for n = 2,3,4. This extends the known class of F-theory vacua to theories which are dual to heterotic compactifications with reduced rank. On compactifying on a further torus, we obtain a description of the heterotic moduli space of G bundles over elliptically fibered manifolds without vector structure in terms of complex geometries.