Interacting New Agegraphic Dark Energy in a Cyclic Universe

Abstract

The main goal of this work is investigation of NADE in the cyclic universe scenario. Since, cyclic universe is explained by a phantom phase ($\omega <-1$), it is shown when there is no interaction between matter and dark energy, ADE and NADE do not produce a phantom phase, then can not describe cyclic universe. Therefore, we study interacting models of ADE and NADE in the modified Friedmann equation. We find out that, in the high energy regime, which it is a necessary part of cyclic universe evolution, only NADE can describe this phantom phase era for cyclic universe. Considering deceleration parameter tells us that the universe has a deceleration phase after an acceleration phase, and NADE is able to produce a cyclic universe. Also it is found valuable to study generalized second law of thermodynamics. Since the loop quantum correction is taken account in high energy regime, it may not be suitable to use standard treatment of thermodynamics, so we turn our attention to the result of \citep{29}, which the authors have studied thermodynamics in loop quantum gravity, and we show that which condition can satisfy generalized second law of thermodynamics.

8 pages, 3 figures

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• Periodic Cosmological Evolutions of Equation of State for Dark Energy
• Observational Constraints on the Dark Energy with a Quadratic Equation of State
• On the holographic dark energy in chameleon scalar-tensor cosmology
• Knot Universes in Bianchi Type I Cosmology
• Reconstruction of the equation of state for the cyclic universes in homogeneous and isotropic cosmology
• Isochronous Cosmologies
• Interacting Tsallis agegraphic dark energy in DGP Braneworld Cosmology
• Gravitational waves in a cyclic Universe: resilience through cycles and vacuum state
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• Revisiting Holographic Dark Energy in Cyclic Cosmology
• Isochronous solutions of Einstein's equations and their Newtonian limit
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