TL;DR
This paper reviews exponential scalar potentials in supergravity, highlighting a specific N=8 D=4 supergravity model from M-theory that exhibits eternal quintessence and discusses implications for de Sitter holography.
Contribution
It identifies a supergravity model derived from M-theory that provides a concrete realization of eternal quintessence in cosmology.
Findings
Existence of an accelerating solution with positive exponential potential
Connection to de Sitter domain wall/QFT correspondence
Updated understanding of exponential potentials in supergravity
Abstract
The status of exponential scalar potentials in supergravity is reviewed, and updated. One version of N=8 D=4 supergravity with a positive exponential potential, obtainable from a `non-compactification' of M-theory, is shown to have an accelerating cosmological solution that realizes `eternal quintessence'. Some implications for a de Sitter version of the domain wall/QFT correspondence are discussed.
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