عنوان مجله
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INTERNATIONAL JOURNAL OF MODERN PHYSICS D
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چکیده
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We use three infrared (IR) cutoffs, including the future event horizon, the Hubble and
Granda–Oliveros (GO) cutoffs, to construct three holographic models of dark energy
(DE). Additionally, we consider a Friedmann–Robertson–Walker (FRW) universe filled
by a dark matter (DM) and a DE that interact with each other through a mutual signchangeable
interaction with positive coupling constant. Thereinafter, we address the
evolution of the some cosmological parameters, such as the equation of state (EoS) and
dimensionless density parameters of DE as well as the deceleration parameter, during
the cosmic evolution from the matter-dominated era until the late-time acceleration. We
observe that a holographic dark energy (HDE) model with Hubble cutoff interacting
with DM cannot be in line with the current universe. Our study shows that models with
the future event horizon as the IR cutoff or the GO cutoff are in good agreement with
the observational data. In fact, we find out that these two recent models can predict the
universe transition from a deceleration phase to the acceleration one in a compatible
way with observations. The three obtained models may also allow the EoS parameter to
cross the phantom line, a result which depends on the values of the system’s constants
such as the value of the interaction coupling constant.
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