Decaying cosmological parameter in the early universe from NKK theory of gravity

TL;DR

This paper investigates the decay of the cosmological parameter in the early universe using a stochastic, nonperturbative approach within Noncompact Kaluza-Klein (NKK) gravity, focusing on energy density fluctuations during inflation.

Contribution

It introduces a novel stochastic formalism within NKK theory to analyze the decay of the cosmological parameter during early universe evolution.

Findings

Demonstrates decay behavior of the cosmological parameter in early universe

Provides a nonperturbative framework for inflaton field analysis

Analyzes energy density fluctuations during inflation

Abstract

Using a formalism recently introduced we study the decaying of the cosmological parameter during the early evolution of an universe, whose evolution is governed by a vacuum equation of state. We use a stochastic approach in a nonperturbative treatment of the inflaton field from a Noncompact Kaluza-Klein (NKK) theory, to study the evolution of energy density fluctuations in the early universe.