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arXiv · hep-th/0312111

Gauge Five Brane Dynamics And Small Instanton Transitions In Heterotic Models

James Gray·Andre Lukas·Gavin I. Probert
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Abstract

We present the first examples of cosmological solutions to four-dimensional heterotic models which include an evolving bundle modulus. The particular bundle modulus we consider corresponds to the width of a gauge five brane. As such our solutions can be used to describe the evolution in one of these models after a small instanton transition. We find that certain properties are generic to these solutions, regardless of initial conditions. This enables us to make some definite statements about the dynamics subsequent to a small instanton transition despite the fact that we cannot microscopically describe the process itself. We also show that an effective description of the small instanton transition by a continuous matching of fields and their first derivatives is precluded by the form of the respective low-energy theories before and after the transition.

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James Gray, Andre Lukas, Gavin I. Probert. 2003-12-10. Gauge Five Brane Dynamics And Small Instanton Transitions In Heterotic Models. https://doi.org/10.1103/physrevd.69.126003

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