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arXiv · 0710.1406

Limits from Weak Gravity Conjecture on Dark Energy Models

Xing Wu·Zong-Hong Zhu
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Abstract

The weak gravity conjecture has been proposed as a criterion to distinguish the landscape from the swampland in string theory. As an application in cosmology of this conjecture, we use it to impose theoretical constraint on parameters of two types of dark energy models. Our analysis indicates that the Chaplygin-gas-type models realized in quintessence field are in the swampland, whereas the $a$ power-low decay model of the variable cosmological constant can be viable but the parameters are tightly constrained by the conjecture.

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Xing Wu, Zong-Hong Zhu. 2007-10-18. Limits from Weak Gravity Conjecture on Dark Energy Models. https://doi.org/10.1088/0256-307x%2F25%2F4%2F095

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