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arXiv · hep-th/0501099

Brane Inflation and Cosmic String Tension in Superstring Theory

Hassan Firouzjahi·S. -H. Henry Tye
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Abstract

In a simple reanalysis of the KKLMMT scenario, we argue that the slow roll condition in the D3-anti-D3-brane inflationary scenario in superstring theory requires no more than a moderate tuning. The cosmic string tension is very sensitive to the conformal coupling: with less fine-tuning, the cosmic string tension (as well as the ratio of tensor to scalar perturbation mode) increases rapidly and can easily saturate the present observational bound. In a multi-throat brane inflationary scenario, this feature substantially improves the chance of detecting and measuring the properties of the cosmic strings as a window to the superstring theory and our pre-inflationary universe.

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Hassan Firouzjahi, S. -H. Henry Tye. 2005-02-21. Brane Inflation and Cosmic String Tension in Superstring Theory. https://doi.org/10.1088/1475-7516%2F2005%2F03%2F009

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