Published February 15, 1993
| Version v1
Journal article
Dilaton contributions to the cosmic gravitational wave background
Creators
- 1. Istituto Nazionale di Fisica Nucleare, Sezione di Torino, Torino (Italy)
- 2. Dipartimento di Fisica Teorica dell'Universita, Via P. Giuria 1, 10125 Torino (Italy)
Description
We consider the cosmological amplification of a metric perturbation propagating in a higher-dimensional Brans-Dicke background, including a nontrivial dilaton evolution. We discuss the properties of the spectral energy density of the produced gravitons (as well as of the associated squeezing parameter), and we show that the present observational bounds on the graviton spectrum provide significant information on the dynamical evolution of the early Universe
Additional details
Publishing Information
- Journal Title
- Physical Review. D, Particles Fields
- Journal Volume
- 47
- Journal Issue
- 4
- Journal Page Range
- p. 1519-1528.
- ISSN
- 0556-2821
- CODEN
- PRVDAQ
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 24039681
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- BACKGROUND RADIATION; COSMIC RADIATION; COSMOLOGICAL MODELS; ENERGY DENSITY; GRAVITATIONAL WAVES; GRAVITONS; KALUZA-KLEIN THEORY; MANY-DIMENSIONAL CALCULATIONS; METRICS; PERTURBATION THEORY; SCALAR FIELDS; STRING MODELS; TIME DEPENDENCE; UNIVERSE; WAVE EQUATIONS
- Descriptors DEC
- DIFFERENTIAL EQUATIONS; ELEMENTARY PARTICLES; EQUATIONS; EXTENDED PARTICLE MODEL; FIELD THEORIES; GRAVITATIONAL RADIATION; IONIZING RADIATIONS; MASSLESS PARTICLES; MATHEMATICAL MODELS; PARTIAL DIFFERENTIAL EQUATIONS; PARTICLE MODELS; POSTULATED PARTICLES; RADIATIONS; UNIFIED-FIELD THEORIES