Causality Problem in a Holographic Dark Energy Model

Abstract

In the model of holographic dark energy, there is a notorious problem of circular reasoning between the introduction of future event horizon and the accelerating expansion of the universe. We examine the problem after dividing into two parts, the causality problem of the equation of motion and the circular logic on the use of the future event horizon. We specify and isolate the root of the problem from causal equation of motion as a boundary condition, which can be determined from the initial data of the universe. We show that there is no violation of causality if it is defined appropriately and the circular logic problem can be reduced to an initial value problem.

5 pages

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Cited by in corpus (9)

• Holographic dark energy in modified Barrow cosmology
• Cosmological constraints on the new holographic dark energy model with action principle
• A New Model of Holographic Dark Energy with Action Principle
• Holographic Dark Energy and Quantum Entanglement
• Reconstructing FHDE with Scalar and Gauge Fields
• Cosmology in holographic non-minimal derivative coupling theory: constraints from inflation and variation of gravitational constant
• Revisiting Holographic Dark Energy in Cyclic Cosmology
• K-essential covariant holography
• Covariant holography of a tachyonic accelerating universe