Quantum Fluctuations of Planck Mass as Mutation Mechanism in a Theory of Evolution of the Universe

TL;DR

This paper proposes a quantum cosmology model where fluctuations in Planck mass act as mutations, influencing universe evolution through a selection mechanism that favors larger inflationary volumes, leading to a larger effective Planck scale.

Contribution

It introduces a novel mutation mechanism based on quantum fluctuations of Planck mass within a stochastic quantum cosmology framework, linking it to universe evolution.

Findings

Quantum fluctuations of Planck mass act as mutations in inflation.

Selection favors larger inflationary volumes, increasing the effective Planck scale.

End-of-inflation Planck scale exceeds initial model scales.

Abstract

Contributed talk at the Seventh Marcel Grossman Meeting on Gravity, June 24-30. A theory of evolution of the universe requires both a mutation mechanism and a selection mechanism. We believe that both can be encountered in the stochastic approach to quantum cosmology. In Brans-Dicke chaotic inflation, the quantum fluctuations of Planck mass behave as mutations, such that new inflationary domains may contain values of Planck mass that differ slightly from their parent's. The selection mechanism establishes that the value of Planck mass should be such as to increase the proper volume of the inflationary domain, which will then generate more offsprings. This mechanism predicts that the effective Planck scale at the end of inflation should be much larger than any given scale in the model.