Bounce and cyclic cosmology in extended nonlinear massive gravity

Journal Article · Mon Oct 01 00:00:00 EDT 2012 · Journal of Cosmology and Astroparticle Physics

DOI:https://doi.org/10.1088/1475-7516/2012/10/048· OSTI ID:22279657

Cai, Yi-Fu ^[1]; Gao, Caixia ^[2]

---

1. Department of Physics, Arizona State University, 650 E. Tyler Mall, Tempe, AZ 85287 (United States)
2. Department of Physics and Astronomy, University of Mississippi, 123 Lewis Hall, University, MS 38677 (United States)

We investigate non-singular bounce and cyclic cosmological evolutions in a universe governed by the extended nonlinear massive gravity, in which the graviton mass is promoted to a scalar-field potential. The extra freedom of the theory can lead to certain energy conditions violations and drive cyclicity with two different mechanisms: either with a suitably chosen scalar-field potential under a given Stückelberg-scalar function, or with a suitably chosen Stückelberg-scalar function under a given scalar-field potential. Our analysis shows that extended nonlinear massive gravity can alter significantly the evolution of the universe at both early and late times.

• OSTI ID: 22279657
• Journal Information: Journal of Cosmology and Astroparticle Physics, Vol. 2012, Issue 10; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1475-7516
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
ASTROPHYSICS
COSMOLOGY
EVOLUTION
GRAVITATION
MASS
NONLINEAR PROBLEMS
POTENTIALS
SCALAR FIELDS
SCALARS
UNIVERSE