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- Title
Cosmological reconstruction and stability in $$f(R,T)$$ gravity.
- Authors
Sharif, M.; Zubair, M.
- Abstract
We study the cosmological reconstruction of $$f(R,T)$$ gravity (where $$R$$ and $$T$$ denote the Ricci scalar and trace of the energy-momentum tensor) corresponding to the evolution background in FRW universe. It is shown that any cosmological evolution including $$\Lambda $$ cold dark matter, phantom or non-phantom eras and possible phase transition from decelerating to accelerating can be reproduced in this theory. We propose some specific forms of Lagrangian in the perspective of de Sitter and power law expansion history. Finally, we formulate the perturbed evolution equations and analyze the stability of some important solutions.
- Subjects
SCALAR field theory; ENERGY momentum relationship; DARK matter; PHASE transitions; LAGRANGE spectrum
- Publication
General Relativity & Gravitation, 2014, Vol 46, Issue 6, p1
- ISSN
0001-7701
- Publication type
Article
- DOI
10.1007/s10714-014-1723-1