It' not a theory paper. It's an anti-theory paper! I.e. Is shows that current data is not compatible with the Newtonian gravity at 5 sigma to 2 sigma depending on the cut.
Chae claimed not just proof of MOND but close fit with particular MOND models. Hernandez claimed evidence of MOND in a smaller cleaner sample. Banik claimed no evidence of MOND in a large sample.
McGaugh above felt that Hernandez's results were the best.
Now Chae and Hernandez are coauthors on this paper!
Benjamin Koch1,2,3,*, Ali Riahinia1,2,†, and Angel Rincon4,‡
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Phys. Rev. D 112, 084056 – Published 22 October, 2025
DOI: https://doi.org/10.1103/w1sd-v69d
bstract
We investigate the motion of test particles in quantum-gravitational backgrounds by introducing the concept of q–desics, quantum-corrected analogs of classical geodesics. Unlike standard approaches that rely solely on the expectation value of the spacetime metric, our formulation is based on the expectation value of quantum operators, such as the affine connection operator. This allows us to capture richer geometric information. We derive the q–desic equation using both Lagrangian and Hamiltonian methods and apply it to spherically symmetric static backgrounds obtained from canonical quantum gravity. Exemplary results include lightlike radial motion and circular motion with quantum gravitational corrections far above the Planck scale. This framework provides a refined description of motion in quantum spacetimes and opens new directions for probing the interface between quantum gravity and classical general relativity.
Note that this paper is not just a reanalysis of existing data. They went out got observation time on three cutting edge telescopes and generated a bunch of new data. They spend more time examining all the failure modes of their observations and analysis than conclusions.
13 comments:
Paper seems righteous.
Is this consistent with Deur? Is there a cloud of gravitons around the binaries? Seems like there has to be.
Haven't had time to read it in depth.
It' not a theory paper. It's an anti-theory paper! I.e. Is shows that current data is not compatible with the Newtonian gravity at 5 sigma to 2 sigma depending on the cut.
https://www.smbc-comics.com/comic/unified-2
@DDeden The biologists strike back! Cute!
As of end 2023, there were three groups publishing MOND work on wide binaries, Chae, Hernandez, and Banik.
https://tritonstation.com/2023/11/23/a-post-in-which-some-value-judgements-are-made-about-the-situation-with-wide-binaries/
Chae claimed not just proof of MOND but close fit with particular MOND models. Hernandez claimed evidence of MOND in a smaller cleaner sample. Banik claimed no evidence of MOND in a large sample.
McGaugh above felt that Hernandez's results were the best.
Now Chae and Hernandez are coauthors on this paper!
But I can't yet say how reliable the results are.
Banik was a MOND
Banik believes in MOND at the level of galactic rotation curves, but he thinks the wide binaries exhibit unmodified, ordinary Newtonian behavior.
could Gravity Anomalies Seen In Wide Binary Stars change Banik view ?
Geodesics in quantum gravity
Benjamin Koch1,2,3,*, Ali Riahinia1,2,†, and Angel Rincon4,‡
PDF
Share
Phys. Rev. D 112, 084056 – Published 22 October, 2025
DOI: https://doi.org/10.1103/w1sd-v69d
bstract
We investigate the motion of test particles in quantum-gravitational backgrounds by introducing the concept of q–desics, quantum-corrected analogs of classical geodesics. Unlike standard approaches that rely solely on the expectation value of the spacetime metric, our formulation is based on the expectation value of quantum operators, such as the affine connection operator. This allows us to capture richer geometric information. We derive the q–desic equation using both Lagrangian and Hamiltonian methods and apply it to spherically symmetric static backgrounds obtained from canonical quantum gravity. Exemplary results include lightlike radial motion and circular motion with quantum gravitational corrections far above the Planck scale. This framework provides a refined description of motion in quantum spacetimes and opens new directions for probing the interface between quantum gravity and classical general relativity.
@DDeden Laughed my ass off! Thanx.
Note that this paper is not just a reanalysis of existing data. They went out got observation time on three cutting edge telescopes and generated a bunch of new data. They spend more time examining all the failure modes of their observations and analysis than conclusions.
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