Interacting dark energy in Hořava-Lifshitz cosmology

2009/09/30 by M. R. Setare, M R Setare, Davood Momeni +1 · 28 citations
Physics and Astronomy · #Advanced Differential Geometry Research #Astrophysics #Black Holes and Theoretical Physics #Cosmology #Cosmology and Gravitation Theories #Dark energy #Dark fluid #Mathematical physics #Physics #Scalar (mathematics) #Scalar field #Theoretical physics #hep-th

paper · pdf · doi:10.1007/s10509-011-0955-8

published in Astrophysics and Space Science 338(2), 405-410 (Springer Science+Business Media) · 10 pages, no figure

arxiv created 2009/12/02 · openalex publication_date 2011/12/21 · arxiv updated 2015/05/14 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

In the usual Hořava-Lifshitz cosmological models, the scalar field is responsible for dark matter. Using an additional scalar field, Saridakis \citesari has formulated Hořava-Lifshitz cosmology with an effective dark energy sector. In the paper \citesari the scalar fields do not interact with each other, here we extend this work to the interacting case, where matter scalar field ϕ interact with dark energy scalar field σ. We will show that in contrast with \citesari, where σ-filed is absent, we can obtain w_d ^{\rm eff}<-1, that is we result to an effective dark energy presenting phantom behaviour. This behaviour is pure effect of the interaction.

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Cited by

• Holographic dark energy with varying gravitational constant in Hořava-Lifshitz cosmology