A graceful multiversal link of particle physics to cosmology

TL;DR

This paper proposes a multiverse framework where particle physics is confined to the entire multiverse, while our observable universe is a single finite-time universe, potentially resolving key issues in cosmology and particle physics.

Contribution

It introduces a novel multiverse scenario linking particle physics and cosmology, offering solutions to longstanding fundamental problems.

Findings

Addresses the cosmological constant problem

Explains the arrow of time within the multiverse context

Proposes a finite proper size for the event horizon

Abstract

In this paper we work out a multiverse scenario whose physical characteristics enable us to advance the following the conjecture that whereas the physics of particles and fields is confined to live in the realm of the whole multiverse formed by finite-time single universes, that for our observable universe must be confined just in one of the infinite number of universes of the multiverse when such a universe is consistently referred to an infinite cosmic time. If this conjecture is adopted then some current fundamental problems that appear when one tries to make compatible particle physics and cosmology- such as that for the cosmological constant, the arrow of time and the existence of a finite proper size of the event horizon- can be solved.