Dark energy stars with a phantom field

We study the statefinder parameter in the five-dimensional big bounce model, and apply it to differentiate the attractor solutions of quintessence and phantom field. It is found that the evolving trajectories of these two attractor solutions in the statefinder parameters plane are quite different, and that are different from the statefinder trajectories of other dark energy models.

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Viscous dark energy and phantom field in an anisotropic universe

Astrophysics and Space Science ◽

10.1007/s10509-014-1798-x ◽

2014 ◽

Vol 351 (1) ◽

pp. 59-65 ◽

Cited By ~ 7

Author(s):

Hassan Amirhashchi ◽

Anirudh Pradhan

Keyword(s):

Dark Energy ◽

Anisotropic Universe ◽

Phantom Field

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Chemical potential and the nature of dark energy: The case of a phantom field

Physical Review D ◽

10.1103/physrevd.78.083504 ◽

2008 ◽

Vol 78 (8) ◽

Cited By ~ 28

Author(s):

J. A. S. Lima ◽

S. H. Pereira

Keyword(s):

Dark Energy ◽

Chemical Potential ◽

Phantom Field

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Dark energy from a phantom field near a local potential minimum

Physics Letters B ◽

10.1016/j.physletb.2009.04.072 ◽

2009 ◽

Vol 676 (1-3) ◽

pp. 12-15 ◽

Cited By ~ 33

Author(s):

Sourish Dutta ◽

Robert J. Scherrer

Keyword(s):

Dark Energy ◽

Local Potential ◽

Potential Minimum ◽

Phantom Field

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STATEFINDER PARAMETERS FOR PHANTOM DARK ENERGY

Modern Physics Letters A ◽

10.1142/s0217732306019293 ◽

2006 ◽

Vol 21 (16) ◽

pp. 1305-1311 ◽

Cited By ~ 1

Author(s):

PUXUN WU ◽

HONGWEI YU

Keyword(s):

Dark Energy ◽

Dark Energy Model ◽

Energy Model ◽

Field Potentials ◽

Statefinder Parameters ◽

Phantom Field ◽

Energy Models ◽

Phantom Dark Energy ◽

The Universe

The statefinder parameters were introduced recently to differentiate different dark energy models. In this paper we perform a statefinder diagnostic to the phantom dark energy model with two different phantom field potentials. Our results show that the statefinder diagnostic is rather robust in differentiating not only different dark energy models but also the same kind of models with different potentials which lead to different fate of the universe.

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SOME CONSEQUENCES OF DARK ENERGY DENSITY VARYING EXPONENTIALLY WITH SCALE FACTOR

Modern Physics Letters A ◽

10.1142/s0217732305017858 ◽

2005 ◽

Vol 20 (36) ◽

pp. 2805-2818

Author(s):

SANIL UNNIKRISHNAN ◽

T. R. SESHADRI

Keyword(s):

Dark Energy ◽

Energy Density ◽

Cosmological Constant ◽

Scale Factor ◽

Dark Energy Density ◽

Phantom Field

In this paper we have explored the consequences of a model of dark energy with its energy density varying exponentially with the scale factor. We first consider the model with ρϕ∝eκa, where κ is a constant. This is a kind of generalization of the cosmological constant model with κ=0. We show that such an exponentially varying dark energy density with the scale factor naturally leads to an equivalent phantom field. We also consider a model with ρϕ∝eκ/a and show that this also naturally leads to an equivalent phantom field.

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