Interacting agegraphic tachyon model of dark energy
نویسندگان
چکیده
منابع مشابه
Interacting Agegraphic Dark Energy
A new dark energy model, named as “agegraphic dark energy”, has been proposed by one of us (R. G. Cai) in arXiv:0707.4049, based on the Károlyházy uncertainty relation, which arises from the quantum mechanics together with general relativity. In this note, we extend the original agegraphic dark energy model by including the interaction between the agegraphic dark energy and the pressureless (da...
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We consider the interacting new agegraphic dark energy model to investigate the validity of the generalized second law of thermodynamics in non-flat universe enclosed by the apparent horizon. We show that for this model in presence of interaction with the cold dark matter, the equation of state parameter can cross the phantom divide. We also present that for the selected model under thermal equ...
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Recently a new model of dynamical dark energy, or time-varying Λ, was proposed by Cai [arXiv:0707.4049] by relating the energy density of quantum fluctuations in a Minkowski spacetime, namely ρq ≡ 3n2m2P /t, where n ∼ O(1) and t is the cosmic time, to the present day dark energy density. In this note, we show that the model can be adjusted to the present values of dark energy density parameter ...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 2010
ISSN: 0370-2693
DOI: 10.1016/j.physletb.2009.11.034