Cosmological behavior in extended nonlinear massive gravity

Genly Leon, JOEL FRANCISCO SAAVEDRA ALVEAR, Emmanuel N. Saridakis

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71 Scopus citations

Abstract

We perform a detailed dynamical analysis of various cosmological scenarios in extended (varying-mass) nonlinear massive gravity. Due to the enhanced freedom in choosing the involved free functions, this cosmological paradigm allows for a huge variety of solutions that can attract the universe at late times, compared to scalar-field cosmology or usual nonlinear massive gravity. Amongst others, it accepts quintessence, phantom or cosmological-constant-like late-time solutions, which moreover can alleviate the coincidence problem. These features seem to be general and non-sensitive to the imposed ansantzes and model parameters, and thus extended nonlinear massive gravity can be a good candidate for the description of nature.

Original languageEnglish
Article number135001
JournalClassical and Quantum Gravity
Volume30
Issue number13
DOIs
StatePublished - 7 Jul 2013

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