
TL;DR
This paper explores a Horava-Lifshitz cosmological model with a scalar field that results in dynamic dark energy, capable of phantom behavior, bounce, and cyclic universe scenarios.
Contribution
It introduces a novel Horava-Lifshitz dark energy model with unique features like varying equation-of-state and cyclic cosmology implications.
Findings
Exhibits phantom behavior and crossing of the phantom divide.
Predicts bounce at small scale factors and turnaround at large scale factors.
Supports cyclic cosmology scenarios.
Abstract
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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