Entropic Inflation

TL;DR

This paper proposes a novel entropic mechanism for cosmic inflation, attributing the universe's early accelerated expansion to holographic entropy and temperature effects rather than scalar fields like the inflaton.

Contribution

It introduces an entropic force-based model for inflation, offering an alternative to scalar field-driven theories by leveraging holographic information principles.

Findings

Supports inflation through entropic force without scalar fields

Links early universe acceleration to holographic entropy and temperature

Provides a unified entropic explanation for both early and late-time acceleration

Abstract

One of the major pillars of modern cosmology theory is a period of accelerating expansion in the early universe. This accelerating expansion, or inflation, must be sustained for at least 30 e--foldings. One mechanism used to drive the acceleration is the addition of a new energy field, called the Inflaton; often this is a scalar field. We propose an alternative mechanism which, like our approach to explain the late-time accelerating universe, uses the entropy and temperature intrinsic to information holographically stored on a surface enclosing the observed space. The acceleration is due in both cases to an emergent entropic force, naturally arising from the information storage on the horizon.