Abstract
In view of the recent observation data indicating that the equation of state of the dark energy might be smaller than −1, this leads to introduction of phantom models featured by their negative kinetic energy to account for the regime of equation of state w < −1. In this paper, we discuss the possibility of using a nonminimally coupled complex scalar field as phantom to realize the equation-of-state parameter w < −1. The main equations which govern the evolution of the universe are obtained. The relations between the potential of the field and red-shift, namely, the reconstruction equations are derived.
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PACS 04.40.-b, 98.80.Cq, 98.80.Hw
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Shen, YG., Ge, XH. Constructing Phantom With a Nonminimally Coupled Complex Scalar Field. Int J Theor Phys 45, 17–29 (2006). https://doi.org/10.1007/s10773-005-9004-0
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DOI: https://doi.org/10.1007/s10773-005-9004-0