Horava-Lifshitz Dark Energy

Details Horava-Lifshitz Dark Energy Horava-Lifshitz Dark Energy

2009-05-21

arxiv.org/abs/0905.3532v2

Eur.Phys.J.C67:229-235,2010

Physics

High Energy Physics

High Energy Physics - Theory

17 pages, no figures, version published at EJPC

Scientific paper

10.1140/epjc/s10052-010-1294-6

We formulate Horava-Lifshitz cosmology with an additional scalar field that leads to an effective dark energy sector. We find that, due to the inherited features from the gravitational background, Horava-Lifshitz dark energy naturally presents very interesting behaviors, possessing a varying equation-of-state parameter, exhibiting phantom behavior and allowing for a realization of the phantom divide crossing. In addition, Horava-Lifshitz dark energy guarantees for a bounce at small scale factors and it may trigger the turnaround at large scale factors, leading naturally to cyclic cosmology.

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