Non-minimal coupling of the phantom field and cosmic acceleration

Details Non-minimal coupling of the phantom field and cosmic acceleration Non-minimal coupling of the phantom field and cosmic acceleration

2009-06-23

arxiv.org/abs/0906.4237v2

Astrophys.Space Sci. 330: 145-150, 2010; Astrophys.Space Sci.330:145-150,2010

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

9 pages, no figures; (v2) title slightly changed, one reference and acknowledgments added, no change in physics

Scientific paper

10.1007/s10509-010-0369-z

Motivated by the recent interest in phantom fields as candidates for the dark energy component, we investigate the consequences of the phantom field when is minimally coupled to gravity. In particular, the necessary (but insufficient) conditions for the acceleration and superacceleration of the universe are obtained when the non-minimal coupling term is taken into account. Furthermore, the necessary condition for the cosmic acceleration is derived when the phantom field is non-minimally coupled to gravity and baryonic matter is included.

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