COBE, gravitational waves, inflation and extended inflation
β Scribed by Andrew R. Liddle; David H. Lyth
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 543 KB
- Volume
- 291
- Category
- Article
- ISSN
- 0370-2693
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π SIMILAR VOLUMES
The behaviour of gravitational waves in the anomaly-induced inflationary phase is studied. The metric perturbations exhibit a stable behaviour, with a very moderate growth in the amplitude of the waves. The spectral indice is computed, revealing an almost flat spectrum.
## Abstract Scenarios such as the string landscape present the possibility of having various first order transitions during the evolution of the early Universe, specifically during inflation. The gravitational waves emitted from the physical processes related to these first order phase transitions
I consider the status of inflation in the context of string theories. Existing models of supersymmetric inflation cannot be carried over to string theory. Because of its effect on the gravitational equations of motion, the dilaton field necessarily plays an essential role. The possibilities for De S