DOAJ Open Access 2019

Dark energy and the refined de sitter conjecture

Prateek Agrawal Georges Obied

Abstrak

Abstract We revisit the phenomenology of quintessence models in light of the recently refined version of the de Sitter Swampland conjecture, which includes the possibility of unstable de Sitter critical points. We show that models of quintessence can evade previously derived lower bounds on (1 + w), albeit with very finely-tuned initial conditions. In the absence of such tuning or other rolling quintessence fields, a field with mass close to Hubble is required, which has a generic prediction for (1+ w). Slow-roll single field inflation models remain in tension. Other phenomenological constraints arising from the coupling of the quintessence field with the Higgs or the QCD axion are significantly relaxed.

Topik & Kata Kunci

Nuclear and particle physics. Atomic energy. Radioactivity

Penulis (2)

Prateek Agrawal

Georges Obied

Format Sitasi

APA MLA BibTeX

Agrawal, P., Obied, G. (2019). Dark energy and the refined de sitter conjecture. https://doi.org/10.1007/JHEP06(2019)103

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Informasi Jurnal

Tahun Terbit: 2019
Sumber Database: DOAJ
DOI: 10.1007/JHEP06(2019)103
Akses: Open Access ✓