On Internal Consistency of Holographic Dark Energy Models

Abstract

Holographic dark energy (HDE) models, underlain by an effective quantum field theory (QFT) with a manifest UV/IR connection, have become a convincing candidate for the dark energy in the universe. On the other hand, the maximum number of quantum states a conventional QFT in the box of size $L$ is capable to describe, refer to those boxes which are on the brink of experiencing a sudden collapse to a black hole. Another restriction on the underlying QFT is that the UV cutoff, which cannot be chosen independently of the IR cutoff and therefore becomes a function of time in a cosmological setting, should stay the largest energy scale even in the standard cosmological epochs preceding a dark energy dominated one. We show that, irrespective of whether one deals with the saturated form of HDE or takes a certain degree of non-saturation in the past, the above restrictions cannot be met in a radiation-dominated universe, an epoch in the history of the universe which is expected to be perfectly describable within conventional QFT.

arXiv comment8 pages, version to appear in JCAP

References in corpus (18)

• The World as a Hologram
• Cosmological parameters from SDSS and WMAP
• A Model of Holographic Dark Energy
• Effective Field Theory, Black Holes, and the Cosmological Constant
• Quantum gravity and minimum length
• Noncommutative Perturbative Dynamics
• The Stretched Horizon and Black Hole Complementarity
• Holographic dark energy and cosmic coincidence
• Transition of the dark energy equation of state in an interacting holographic dark energy model
• The Holographic Dark Energy in a Non-flat Universe
• Interacting holographic dark energy model in non-flat universe
• Holography and Variable Cosmological Constant
• Equation of state for an interacting holographic dark energy model
• String Theory and the Space-Time Uncertainty Principle
• Restoring Holographic Dark Energy in Brane Cosmology
• Nonsaturated Holographic Dark Energy
• Thermodynamics second law and $\omega =-1$ crossing(s) in interacting holographic dark energy model
• Decaying Superheavy Dark Matter and Subgalactic Structure of the Universe

Cited by in corpus (7)

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• Reconstructing Quintom from Ricci Dark Energy
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• A Braneworld Dark Energy Model with Induced Gravity and the Gauss-Bonnet Effect
• Crossing the phantom divide line in the Holographic dark energy model in a closed universe
• Cosmological Constant from the Entropy Balance Condition
• Entanglement in holographic dark energy models