Holographic dark energy and late cosmic acceleration

Abstract

It has been persuasively argued that the number of the effective degrees of freedom of a macroscopic system is proportional to its area rather than to its volume. This entails interesting consequences for cosmology. Here we present a model based on this "holographic principle" that accounts for the present stage of accelerated expansion of the Universe and significantly alleviates the coincidence problem also for non-spatially flat cosmologies. Likewise, we comment on a recently proposed late transition to a fresh decelerated phase.

arXiv comment6 pages, no figures, contribution to the Proceedings of IRGAC-06

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• Tsallis Holographic Dark Energy Reconsidered
• Running vacuum versus Holographic dark energy: a cosmographic comparison
• Holographic dark energy described at the Hubble length
• A holographic cut-off inspired in the apparent horizon
• Modified Bekenstein-Hawking system in $f(R)$ gravity
• Holographic Dark Energy with Curvature
• A Bohr's Semiclassical Model of the Black Hole Thermodynamics
• A class of transient acceleration models consistent with Big Bang Cosmology
• First-order phase transitions and cosmic evolution: thermodynamic approach to generalized holographic dark energy