Are pre-big-bang models falsifiable by gravitational wave experiments?

Details Are pre-big-bang models falsifiable by gravitational wave experiments? Are pre-big-bang models falsifiable by gravitational wave experiments?

1999-11-26

arxiv.org/abs/gr-qc/9911104v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

4 pages, two eps figures, uses aipproc2.sty. To appear in the Proceedings of the Third Edoardo Amaldi Conference

Scientific paper

10.1063/1.1291845

One of the most interesting predictions of string-inspired cosmological models is the presence of a stochastic background of relic gravitational waves in the frequency band accessible to Earth-based detectors. Here we consider a ``minimal'' class of string cosmology models and explore whether they are falsifiable by gravitational wave observations. In particular, we show that, the detectability of the signal depends crucially on the actual values of the model parameters. This feature will enable laser interferometers -- starting from the second generation of detectors -- to place stringent constraints on the theory for a fairly large range of the free parameters of the model.

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