Energy Conditions and Segre Classification of Phantom Fields

Details Energy Conditions and Segre Classification of Phantom Fields Energy Conditions and Segre Classification of Phantom Fields

2005-02-02

arxiv.org/abs/astro-ph/0502031v2

Phys.Lett. B619 (2005) 11-16

Astronomy and Astrophysics

Astrophysics

4 pages, 1 figure, to appear in Phys. Lett. B

Scientific paper

10.1016/j.physletb.2005.05.059

Recent discoveries in the field of observational cosmology have provided increasing evidence that the Universe is undergoing a late time acceleration, which has also stimulated speculations on the nature of the dark component responsible for such a phenomenon. Among several candidates discussed in the current literature, phantom fields, an exotic scalar field with a negative kinetic term and that violates most of the classical energy conditions, appear as a real possibility according to recent observational analysis. In this paper we examine the invariant characterization for the energy-momentum tensor of phantom fields through the Segre algebraic classification in the framework of general relativity. We also discuss some constraints which are imposed on the values of $V(\phi)$ from the classical energy conditions.

Affiliated with

Also associated with

No associations

Rating

Energy Conditions and Segre Classification of Phantom Fields does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Energy Conditions and Segre Classification of Phantom Fields, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Energy Conditions and Segre Classification of Phantom Fields will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-60457