Holographic Principle, Cosmological Constant and Cyclic Cosmology

Abstract

The holographic principle provides a deep insight into quantum gravity and resolves the fine-tuning crisis concerning the cosmological constant. Holographic dark energy introduces new ultra-violet (UV) and infra-red (IR) cutoffs into quantum gravity which are necessarily strongly related. The equation of state for dark energy $\omega =p/\rho$ is discussed from the holographic point of view. The phantom option of $\omega <-1$ is resurrected, as in an earlier cyclic cosmology. Such a cyclic model can, however, equally use the cosmological constant with $\omega =-1$.

10 pages, version published in Mod. Phys. Lett. A34, 1950355 (2019)

References in corpus (5)

• Turnaround in Cyclic Cosmology
• Constraints on mediator-based dark matter and scalar dark energy models using $\sqrt{s}=13$ TeV $pp$ collision data collected by the ATLAS detector
• Entropy of Contracting Universe in Cyclic Cosmology
• Holographic Dark Energy and Quantum Entanglement
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Cited by in corpus (3)

• Unifying Holographic Inflation with Holographic Dark Energy: a Covariant Approach
• Constraints on Generalized Gravity-Thermodynamic Cosmology from DESI DR2
• Unifying turnaround-bounce cosmology in a cyclic universe considering a running vacuum model