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Solution of the cosmological constant problem within holographic cosmology

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arxiv 1812.07597 v2 pith:6ZT5JAYB submitted 2018-12-18 hep-th astro-ph.COgr-qc

Horatiu Nastase This is my paper
classification hep-thastro-ph.COgr-qc
keywords constantcosmologicalcosmologyevenflowgravityholographicmechanism
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abstract

Within the holographic cosmology paradigm, specifically the model of McFadden and Skenderis, but more generally than that, the cosmological constant is found to naturally flow from a large value, to a small value, which can even be as low as the needed $\sim 10^{-120}$ times the original, along with the dual RG flow. Within this context then, the cosmological constant problem is mapped to a simple quantum field theory property, even though the exact mechanism for it in gravity is still obscure. I consider several examples of gravity duals to explain the mechanism.

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Cited by 1 Pith paper

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  1. The Baby Universe is Fine and the CFT Knows It: On Holography for Closed Universes

    hep-th 2025-07 conditional novelty 5.0 of 10

    A closed universe in AdS/CFT is not ruled out by recent SWAP-test arguments; the one-dimensional Hilbert space seen from the CFT is external indistinguishability, and CFT data can reconstruct the closed universe's geometry.

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