Can Universe Experience Many Cycles with Different Vacua ?

TL;DR

This paper proposes a cyclic universe model where the universe can undergo many cycles with different vacua, offering a potential dynamical explanation for the small cosmological constant and the anthropic principle.

Contribution

It introduces a generic, operable cyclic universe model demonstrating multiple vacua experiences, independent of specific model details.

Findings

Universe can experience many cycles with different vacua.

The behavior is generic and model-independent.

Provides a dynamical approach to anthropic vacuum selection.

Abstract

Recently, the notion that the number of vacua is enormous has received increased attentions, which may be regarded as a possible anthropical explanation to incredible small cosmological constant. Further, a dynamical mechanisms to implement this possibility is required. We show in an operable model of cyclic universe that the universe can experience many cycles with different vacua, which is a generic behavior independent of the details of the model. This might provide a distinct dynamical approach to an anthropically favorable vacuum.