Inter-universal quantum entanglement

TL;DR

This paper explores how inter-universal quantum entanglement could generate observable vacuum energy in individual universes and influence their expansion, providing a testable multiverse hypothesis.

Contribution

It proposes a novel boundary condition for the multiverse leading to entangled universe pairs, linking quantum entanglement with cosmological observations.

Findings

Inter-universal entanglement can produce vacuum energy consistent with observations.

Entanglement thermodynamics may accelerate universe expansion.

The model offers a testable framework for multiverse theories.

Abstract

The boundary conditions to be imposed on the quantum state of the whole multiverse could be such that the universes would be created in entangled pairs. Then, inter-universal entanglement would provide us with a vacuum energy for each single universe that might be fitted with observational data, making testable not only the multiverse proposal but also the boundary conditions of the multiverse. Furthermore, the second law of the entanglement thermodynamics would enhance the expansion of the single universes.