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Kourosh Nozari

Kourosh Nozari

Academic rank: Professor
ORCID: https://orcid.org/0000-0003-4368-5823
Education: PhD.
ScopusId: 9276301800
HIndex:
Faculty: Science
Address: Department of Theoretical Physics, Faculty of Basic Sciences, University of Mazandaran, P. O. Box 47416-95447, Babolsar, Iran
Phone: 01135302482

Research

Title
Crossing of the phantom divided barrier with Lorentz invariance violating fields
Type
JournalPaper
Keywords
Dark energy Phantom Crossing
Year
2008
Journal EPL (Europhysics Letters)
DOI
Researchers S. Davoud Sadatian ، Kourosh Nozari

Abstract

We study the possible crossing of the phantom divided barrier in a Lorentz invariance violating dark-energy model. Lorentz invariance violation, which is achieved by introducing a vector field in the action, incorporates directly in the dynamics of the scalar field and equation of state. This interesting feature allows us to study phantom divided barrier crossing in the context of Lorentz invariance violation. We show that for a suitable choice of the parameter space, the equation of state can cross the phantom divided barrier just by one scalar field and a Lorentz violating vector field controls this crossing.