# New agegraphic dark energy in Horava-Lifshitz cosmology - High Energy Physics - Theory

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Abstract: We investigate the new agegraphic dark energy scenario in a universe governedby Horava-Lifshitz gravity. We consider both the detailed and non-detailedbalanced version of the theory, we impose an arbitrary curvature, and we allowfor an interaction between the matter and dark energy sectors. Extracting thedifferential equation for the evolution of the dark energy density parameterand performing an expansion of the dark energy equation-of-state parameter, wecalculate its present and its low-redshift value as functions of the darkenergy and curvature density parameters at present, of the Horava-Lifshitzrunning parameter $\lambda$, of the new agegraphic dark energy parameter $n$,and of the interaction coupling $b$. We find that $w 0=-0.82^{+0.08} {-0.08}$and $w 1=0.08^{+0.09} {-0.07}$. Although this analysis indicates that thescenario can be compatible with observations, it does not enlighten thediscussion about the possible conceptual and theoretical problems ofHorava-Lifshitz gravity.

Autor: Mubasher Jamil, Emmanuel N. Saridakis

Fuente: https://arxiv.org/