Quantum implications of the Covariant Entropy Bound in String Inflation
Year: 2021
Type: preprint
Abstract: We present a proposal to trace the de Sitter Conjecture back to quantum aspects in a flux string theory compactification setup using the Covariant Entropy Bound. For that we consider a four-dimensional accelerated expanding Universe, which makes the two corresponding inequalities in the Conjecture mutually exclusive. We study the case for single and multi-field inflationary scenarios where we observe that order one constants, c and c' in the conjecture are given in terms of physical quantities such as entropy (from extra dimensions), Hubble constant and the dynamics of the effective scalar fields. Two specific examples are considered in which the amplitude transition of a given flux configuration fulfilling all stringy constraints, generates an entropy function depending on time and in consequence establishing the de Sitter Conjecture bounds.
Source: arXiv (Cornell University)
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W3133596940