Comment on" Anomalous contribution to galactic rotation curves due to stochastic spacetime"

MP Hertzberg, A Loeb - arXiv preprint arXiv:2404.13037, 2024 - arxiv.org
arXiv preprint arXiv:2404.13037, 2024arxiv.org
We analyze the model put forth by Ref.\cite {Oppenheim: 2024rcp}, in which it is claimed
that" post-quantum classical gravity"(PQCG), a stochastic theory of gravity, leads to modified
Newtonian dynamics (MOND) behavior on galactic scales that reproduces galactic rotation
curves. We show that this analysis has two basic problems:(i) the equations of PQCG do not
lead to a new large scale force of the form claimed in the paper, and (ii) the form claimed is
not of the MONDian form anyhow and so does not correspond to observed galactic …
We analyze the model put forth by Ref. \cite{Oppenheim:2024rcp}, in which it is claimed that "post-quantum classical gravity" (PQCG), a stochastic theory of gravity, leads to modified Newtonian dynamics (MOND) behavior on galactic scales that reproduces galactic rotation curves. We show that this analysis has two basic problems: (i) the equations of PQCG do not lead to a new large scale force of the form claimed in the paper, and (ii) the form claimed is not of the MONDian form anyhow and so does not correspond to observed galactic dynamics. We also mention other potential problems that might arise from stochastic gravitational behavior.
arxiv.org