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arXiv · hep-ph/9811375

Quintessential Difficulties

Christopher Kolda·David H. Lyth
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Abstract

An alternative to a cosmological constant is quintessence, defined as a slowly-varying scalar field potential V(ϕ). If quintessence is observationally significant, an epoch of inflation is beginning at the present epoch, with ϕthe slowly-rolling inflaton field. In contrast with ordinary inflation, quintessence seems to require extreme fine tuning of the potential V(ϕ). The degree of fine-tuning is quantified in various cases.

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Christopher Kolda, David H. Lyth. 1999-05-25. Quintessential Difficulties. https://doi.org/10.1016/s0370-2693(99)00657-7

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