An upper bound on the number of e-foldings

TL;DR

This paper establishes an upper limit on the number of e-foldings during cosmic inflation based on the universe's current acceleration and the principle of Cosmological Complementarity.

Contribution

It introduces a theoretical upper bound on inflationary e-foldings assuming an asymptotically de Sitter universe and the validity of Cosmological Complementarity.

Findings

Derives a bound on e-foldings from current acceleration and de Sitter assumptions.

Connects cosmological principles to inflationary constraints.

Provides implications for inflation models and universe's evolution.

Abstract

If the present acceleration of the universe is due to an asymptotically de Sitter universe with small cosmological constant, and the principle of Cosmological Complementarity is valid, then the number of e-foldings during inflation is bounded.