Modeling holographic dark energy with particle and future horizons

Abstract

In this work we explore some cosmological properties coming from the particle and future horizons when are considered as candidates to model the dark energy sector within a holographic context in a flat Friedmann-Lemaitre-Robertson-Walker universe; we focus on some thermodynamics characteristics of the resulting dark energy scenario. Within the interacting scheme for cosmological fluids we obtain that in the dark sector, the dark energy fluid will always have negative entropy production and additionally, the positivity for the entropy and temperature can not be guaranteed simultaneously; this result holds for both horizons. However, this last issue can be solved if chemical potential is introduced in the thermodynamics description. For the non interacting approach, we obtain similar results as those of the single fluid description for the entropy behavior. We also find that the model admits a genuine big rip singularity when the dark energy density is sketched by the future horizon, in consequence the resulting parameter state can cross to the phantom regime. For the particle horizon case the cosmological fluid can emulate ordinary matter and the coincidence parameter has a decreasing behavior when the future horizon is elected.

19 pages, no figures. To appear in Nuclear Physics B

References in corpus (19)

• Dynamics of dark energy
• Dark energy cosmology: the equivalent description via different theoretical models and cosmography tests
• Planck evidence for a closed Universe and a possible crisis for cosmology
• Aspects of the cosmological "coincidence problem"
• Holographic dark energy from nonadditive entropy: cosmological perturbations and observational constraints
• Unified dark energy thermodynamics: varying w and the -1-crossing
• Searching for dark matter - dark energy interactions: going beyond the conformal case
• Chemical Potential and the Nature of the Dark Energy: The case of phantom
• Real Scalar Dark Matter: Relativistic Treatment
• Can Holographic dark energy models fit the observational data?
• Dark energy and Dark matter interaction in light of the second law of thermodynamics
• Thermodynamically allowed phantom cosmology with viscous fluid
• On An Interacting New Holographic Dark Energy Model: observational constraints
• Does the second law hold at cosmic scales?
• Holographic dark energy interacting with dark matter in a Closed Universe
• Holographic Dark Energy and Quantum Entanglement
• A holographic cut-off inspired in the apparent horizon
• Is the Big Rip unreachable?
• Energy definition and dark energy: a thermodynamic analysis

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