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Comment on "A Spin Entanglement Witness for Quantum Gravity" and on "Gravitationally Induced Entanglement between Two Massive Particles is Sufficient Evidence of Quantum Effects in Gravity"

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arxiv 1804.11315 v2 pith:FZS4G6CS submitted 2018-04-30 quant-ph gr-qc

Comment on "A Spin Entanglement Witness for Quantum Gravity" and on "Gravitationally Induced Entanglement between Two Massive Particles is Sufficient Evidence of Quantum Effects in Gravity"

classification quant-ph gr-qc
keywords entanglementquantumarxivcommentgravitylettphysagnostic
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This is a comment on articles Phys. Rev. Lett. 119, 240401 (2017) [arXiv:1707.06050] and Phys. Rev. Lett. 119, 240402 (2017) [arXiv:1707.06036]. We argue that gravity-induced entanglement by Newtonian forces is agnostic to the quantum or classical nature of the gravitational true degrees of freedom.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Classical theories of gravity produce entanglement

    quant-ph 2025-10 conditional novelty 7.0

    In quantum field theory, a classical gravitational potential can entangle two superposed masses through virtual matter exchange, so gravitationally induced entanglement is not by itself proof of quantum gravity.

  2. Entanglement dynamics of two mesoscopic objects with gravitational interaction

    quant-ph 2019-06 unverdicted novelty 4.0

    Gravitational interaction generates entanglement in two mesoscopic particles even with decoherence if coupling is strong, with computed optimal duration and a device-independent verification condition.