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arXiv · 2003.09121

The Effective Potential Originating from Swampland and the Non-trivial Brans-Dicke Coupling

Qi Li·Jing Li·Yongxiang Zhou·Xun Xue
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Abstract

The effective vacuum energy density contributed by the non-trivial contortion distribution and the bare vacuum energy density can be viewed as the energy density of the auxiliary quintessence field potential. We find that the negative bare vacuum energy density from string landscape leads to a monotonically decreasing quintessence potential while the positive one from swampland leads to the meta stable or stable de Sitter like potential. Moreover, the non-trivial Brans-Dicke like coupling between quintessence field and gravitation field is necessary in the latter case.

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Qi Li, Jing Li, Yongxiang Zhou, Xun Xue. 2020-03-20. The Effective Potential Originating from Swampland and the Non-trivial Brans-Dicke Coupling. https://doi.org/10.1088/1674-1137%2Fabab8e

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