Oscillating Universe from inhomogeneous EoS and coupled dark energy

Abstract

An occurrence of an oscillating Universe is showed using an inhomogeneous equation of state for dark energy fluid. The Hubble parameter described presents a periodic behavior such that early and late time acceleration are unified under the same mechanism. Also, it is considered a coupling between dark energy fluid, with homogeneous and constant EoS, and matter, that gives a periodic Universe too. The possible phantom phases and future singularities are studied in the oscillating Universe under discussion. The equivalent scalar-tensor representation for the same oscillating Universe is presented too.

8 pages, 2 figures; added references

References in corpus (8)

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• Quantum phantom cosmology
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Cited by in corpus (9)

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• Cardy-Verlinde formula in FRW Universe with inhomogeneous generalized fluid and dynamical entropy bounds near the future singularity
• Oscillations in the dark energy EoS: new MCMC lessons
• Testing an oscillatory behavior of dark energy
• Periodic Cosmological Evolutions of Equation of State for Dark Energy
• Reconstruction from scalar-tensor theory and the inhomogeneous equation of state in f(T) Gravity
• On Friedmann-Lema\^ıtre-Robertson-Walker cosmologies in non-standard gravity
• Cosmological consequences of a scalar field with oscillating equation of state. III. Unifying inflation with dark energy and small tensor-to-scalar ratio
• Dynamical Analysis of an $n-H-T$ Cosmological Quintessence Real Gas Model with a General Equation of State