Gravitational wave background in perfect fluid quantum cosmologies

2006/05/10 by Patrick Peter, Emanuel J. C. Pinho, Nelson Pinto-Neto · 2 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Quantum Electrodynamics and Casimir Effect #astro-ph #gr-qc #hep-ph #hep-th

paper · pdf · doi:10.1103/physrevd.73.104017

published as Phys.Rev. D73 (2006) 104017 · 12 pages, 5 figures, to appear in Phys. Rev. D (2006)

arxiv created 2006/05/10 · openalex publication_date 2006/05/12 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We discuss the gravitational wave background produced by bouncing models based on a full quantum evolution of a universe filled with a perfect fluid. Using an ontological interpretation for the background wave function allows us to solve the mode equations for the tensorial perturbations, and we find the spectral index as a function of the fluid equation of state.

Citations

• A new inflationary universe scenario: A possible solution of the horizon, flatness, homogeneity, isotropy and primordial monopole problems
• Perfect Fluids in General Relativity: Velocity Potentials and a Variational Principle
• Ekpyrotic universe: Colliding branes and the origin of the hot big bang
• On the “Causality Argument” in Bouncing Cosmologies

Cited by

• Cosmological perturbations of a perfect fluid and noncommutative variables
• Cosmology without inflation