Testing Superstring Theories with Gravitational Waves

Details Testing Superstring Theories with Gravitational Waves Testing Superstring Theories with Gravitational Waves

2011-05-26

arxiv.org/abs/1105.5283v3

Phys. Rev. D 84, 064027 (2011)

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

5 pages 2 figures, v2: changes in presentation, refs revised, matches version in print in PRD

Scientific paper

10.1103/Phys.RevD.84.064027

We provide a simple transfer function that determines the effect of an early matter dominated era on the gravitational wave background and show that a large class of compactifications of superstring theory might be tested by observations of the gravitational wave background from inflation. For large enough reheating temperatures $> 10^9 \GeV$ the test applies to all models containing at least one scalar with mass $< 10^{12}\GeV$ that acquires a large initial oscillation amplitude after inflation and has only gravitational interaction strength, i.e., a field with the typical properties of a modulus.

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