Mimetic Inflation and Self-reproduction

TL;DR

The paper presents a method to prevent self-reproduction in the inflationary universe by coupling the inflaton potential with a mimetic field, avoiding fine-tuning and issues related to eternal inflation and the multiverse.

Contribution

It introduces a simple coupling mechanism with a mimetic field that prevents self-reproduction in inflationary models, addressing key issues in early universe cosmology.

Findings

Self-reproduction can be avoided with mimetic coupling.

Fine-tuning of initial conditions is not necessary.

Eternal inflation and multiverse problems are circumvented.

Abstract

It is shown how self-reproduction can be easily avoided in the inflationary universe, even when inflation starts at Planck scales. This is achieved by a simple coupling of the inflaton potential with a mimetic field. In this case, the problem of fine-tuning of the initial conditions does not arise, while eternal inflation and the multiverse with all their widely discussed problems are avoided.