Reduction of primordial chaos by generic quantum effects

TL;DR

This paper demonstrates that quantum effects can suppress the chaotic behavior of the early universe, using a novel extension of classical chaos analysis to quantum states through quasiclassical methods.

Contribution

It introduces a method to apply dynamical-systems analysis to quantum evolution, showing quantum fluctuations reduce primordial chaos.

Findings

Quantum fluctuations decrease early-universe chaos

Extension of classical chaos analysis to quantum states

Quantum effects can alter early-universe dynamics

Abstract

According to general relativity, the generic early-universe dynamics is chaotic. Various quantum-gravity effects have been suggested that may change this behavior in different ways. Here, it is shown how key mathematical properties of the classical dynamics can be extended to evolving quantum states using quasiclassical methods, making it possible to apply the established dynamical-systems approach to chaos even to quantum evolution. As a result, it is found that quantum fluctuations contribute to the reduction of the primordial chaos in early-universe models.