Restrictions on purely kinetic k-essence

Details Restrictions on purely kinetic k-essence Restrictions on purely kinetic k-essence

2010-05-24

arxiv.org/abs/1005.4343v2

Chin. Phys. Lett. 28 (2011) 109502

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

4 pages, 2 figures

Scientific paper

10.1088/0256-307X/28/10/109502

We restrict purely kinetic k-essence. Assuming the equation of state is a power law of the kinetic energy: $w=w_0X^{\alpha}$, to obtain accelerated phases, we must have $\alpha>0$ as one of necessary conditions, constrained from the conditions for stability and causality, and the k-essence must behave like phantom. We also study the evolutions of the equation of state and the speed of sound with numerical simulation.

Affiliated with

Also associated with

No associations

Rating

Restrictions on purely kinetic k-essence 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 Restrictions on purely kinetic k-essence, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Restrictions on purely kinetic k-essence will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-119314