First-Order Formalism for the Quintom Model of Dark Energy
نویسندگان
چکیده
منابع مشابه
First - order formalism for the quintom model of dark energy
The present paper deals to the quintom model of dark energy. We introduce a first-order formalism, which shows how to relate the potential that specifies the scalar field model to Hubble parameter. Reviewing briefly the quintom scenario of dark energy, we present a general procedure to solve the equations of motion for quintom model driven by a couple scalar fields with first-order differential...
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A class of dynamical dark energy models, dubbed Spinor Quintom, can be constructed by a spinor field ψ with a nontraditional potential. We find that, if choosing suitable potential, this model is able to allow the equation-of-state to cross the cosmological constant boundary without introducing any ghost fields. In a further investigation, we show that this model is able to mimic a perfect flui...
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ژورنال
عنوان ژورنال: International Journal of Theoretical Physics
سال: 2008
ISSN: 0020-7748,1572-9575
DOI: 10.1007/s10773-008-9757-3