Variety of cosmic acceleration models from massive F(R) bigravity
- 1. Department of Physics, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602 (Japan)
- 2. Consejo Superior de Investigaciones Científicas, ICE/CSIC-IEEC, Campus UAB, Facultat de Ciències, Torre C5-Parell-2a pl, E-08193 Bellaterra (Barcelona) Spain (Spain)
Description
We study the accelerating cosmology in massive F(R) bigravity via the reconstruction scheme. The consistent solution of the FRW equations is presented: it includes Big and Little Rip, quintessence, de Sitter and decelerating universes described by the physical g metric while the corresponding solution of the universe described by the reference f metric is also found. It is demonstrated that in general the cosmological singularities of g metric are not always manifested as cosmological singularities of the reference f metric. We give two consistent ways to describe the Big and Little Rip, quintessence, de Sitter and decelerating universes. In one of the consistent solutions, the two metrics g and f coincide with each other, which may indicate the connection with the convenient single metric background formulation. For another solution, where two metrics g and f do not coincide with each other, there always appears super-luminal mode
Availability note (English)
Available from http://dx.doi.org/10.1088/1475-7516/2013/05/020Additional details
Identifiers
Publishing Information
- Journal Title
- Journal of Cosmology and Astroparticle Physics
- Journal Volume
- 2013
- Journal Issue
- 05
- Journal Page Range
- p. 020
- ISSN
- 1475-7516
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 45104233
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Descriptors DEI
- ACCELERATION; COSMOLOGY; DE SITTER GROUP; DE SITTER SPACE; FIELD EQUATIONS; MATHEMATICAL SOLUTIONS; METRICS; NONLUMINOUS MATTER; SINGULARITY; UNIVERSE
- Descriptors DEC
- EQUATIONS; LIE GROUPS; MATHEMATICAL SPACE; MATTER; SPACE; SYMMETRY GROUPS