English

The entropic quasi-de Sitter instability time from the distance conjecture

High Energy Physics - Theory 2020-07-01 v2 General Relativity and Quantum Cosmology

Abstract

From the entropy argument for the dS swampland conjecture which connects the Gibbons-Hawking entropy bound with the distance conjecture, we find the entropic quasi-dS instability time given by 1/(ϵHH)log(mPl/H)1/(\sqrt{\epsilon_H}H)\log(m_{\rm Pl}/H) as the lifetime of quasi-dS spacetime. It depends on the slow-roll parameter, and contains the logarithmic factor log(mPl/H)\log(m_{\rm Pl}/H) which can be found in the scrambling (or decoherence) time as well. Such a logarithmic factor enhances the geodesic distance of the modulus from the mere Planck scale, and also possibly relaxes the bound on mPl22V/Vm_{\rm Pl}^2 \nabla^2 V/V.

Keywords

Cite

@article{arxiv.1911.06441,
  title  = {The entropic quasi-de Sitter instability time from the distance conjecture},
  author = {Min-Seok Seo},
  journal= {arXiv preprint arXiv:1911.06441},
  year   = {2020}
}

Comments

5 pages, 2 figures, version published in Phys. Lett. B