Entanglement production through a cosmological bounce
General Relativity and Quantum Cosmology
2024-09-09 v2 High Energy Physics - Theory
Quantum Physics
Abstract
In quantum cosmology, it is expected that the Big Bang singularity is resolved and the universe undergoes a bounce. We find that for Gaussian initial states, matter-gravity entanglement entropy rises rapidly during the bounce, declines, and then approaches a steady-state value following the bounce. These observations suggest that matter-gravity entanglement is a feature of the macroscopic universe and that there is no Second Law of entanglement entropy.
Cite
@article{arxiv.2405.11296,
title = {Entanglement production through a cosmological bounce},
author = {Viqar Husain and Irfan Javed and Sanjeev S. Seahra and Nomaan X},
journal= {arXiv preprint arXiv:2405.11296},
year = {2024}
}
Comments
8 pages, 2 figures; this essay received an honorable mention in the 2024 Gravity Research Foundation competition; version to appear in IJMPD