Theoretical Limits on Agegraphic Quintessence from Weak Gravity Conjecture

Details Theoretical Limits on Agegraphic Quintessence from Weak Gravity Conjecture Theoretical Limits on Agegraphic Quintessence from Weak Gravity Conjecture

2010-05-14

arxiv.org/abs/1005.2466v1

Phys.Lett.B689:139-144,2010

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

14 pages, 3 figures

Scientific paper

In this paper, we investigate the possible theoretical constraint on the parameter $n$ of the agegraphic quintessence model by considering the requirement of the weak gravity conjecture that the variation of the quintessence scalar field $\phi$ should be less than the Planck mass $M_{\rm{p}}$. We obtain the theoretical upper bound $n\lesssim 2.5$ that is inconsistent with the current observational constraint result $2.637

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