Quantum creation of a universe-antiuniverse pair

TL;DR

This paper explores the quantum creation of universe-antiuniverse pairs, suggesting they form a natural pair with reversed time flow, potentially explaining matter-antimatter asymmetry and leaving observable imprints.

Contribution

It introduces a quantum cosmology model where universe-antiuniverse pairs are naturally created with reversed time flow, offering a new perspective on matter-antimatter asymmetry.

Findings

Universe-antiuniverse pairs are created with reversed time flow.

Such pairs can explain matter-antimatter asymmetry.

Potential observable imprints of the multiverse proposal.

Abstract

If one analyses the quantum creation of the universe, it turns out that the most natural way in which the universes can be created is in pairs of universes whose time flow is reversely related. It means that the matter that propagates in one of the universes can be seen, from the point of view of the other universe, as antimatter, and viceversa. They thus form a universe-antiuniverse pair. From a global point of view, i.e. from the point of view of the whole multiverse ensemble, the creation of universes in universe-antiuniverse pairs restores the matter-antimatter asymmetry observed in each individual universe and it might provide us with distinguishable imprints of the whole multiverse proposal.