Motivating semiclassical gravity: A classical-quantum approximation for bipartite quantum systems

Husain, Viqar; Javed, Irfan; Seahra, Sanjeev S.; X, Nomaan

doi:10.1103/physrevd.108.086033

Phys. Rev. D

2023

DOI: 10.1103/physrevd.108.086033

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Motivating semiclassical gravity: A classical-quantum approximation for bipartite quantum systems

Viqar Husain,

Irfan Javed,

Sanjeev S. Seahra

et al.

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2024

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Cited by 3 publications

References 49 publications

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Non-Abelian phase and geometric force in a quantum-classical hybrid system

Liu,

Zhang,

et al. 2024

Phys. Rev. A

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Non-Abelian phase and geometric force in a quantum-classical hybrid system

Liu,

Zhang,

et al. 2024

Phys. Rev. A

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Semiclassical geometrodynamics of homogeneous cosmology

Husain,

Muzammil

2024

Phys. Rev. D

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Entanglement production through a cosmological bounce

Husain,

Javed,

Seahra

et al. 2024

Int. J. Mod. Phys. D

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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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Motivating semiclassical gravity: A classical-quantum approximation for bipartite quantum systems

Cited by 3 publications

References 49 publications

Non-Abelian phase and geometric force in a quantum-classical hybrid system

Non-Abelian phase and geometric force in a quantum-classical hybrid system

Semiclassical geometrodynamics of homogeneous cosmology

Entanglement production through a cosmological bounce

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