Statefinder parameters for interacting dark energy

Details Statefinder parameters for interacting dark energy Statefinder parameters for interacting dark energy

2003-11-20

arxiv.org/abs/gr-qc/0311067v1

Gen.Rel.Grav. 36 (2004) 1483-1491

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

11 pages, two encapsulated eps figures, key words: cosmology, accelerated expansion, statefinder parameters

Scientific paper

10.1023/B:GERG.0000022584.54115.

We argue that the recently introduced "statefinder parameters" (Sahni et al.,
JETP Lett. 77, 201 (2003)), that include the third derivative of the cosmic
scale factor, are useful tools to characterize interacting quitessence models.
We specify the statefinder parameters for two classes of models that solve, or
at least alleviate, the coincidence problem.

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