Entanglement production through a cosmological bounce

• URL: http://arxiv.org/abs/2405.11296v2
• Date: Fri, 6 Sep 2024 13:52:24 GMT
• Title: Entanglement production through a cosmological bounce
• Authors: Viqar Husain, Irfan Javed, Sanjeev S. Seahra, Nomaan X,
• Abstract summary: In quantum cosmology, it is expected that the Big Bang singularity is resolved and the universe undergoes a bounce. We find that matter-gravity entanglement entropy rises rapidly during the bounce, declines, and then approaches a steady-state value following the bounce.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• 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.

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