> Abstract: [...] We derive the perihelion precession of planetary orbits using quantum field theory extending the Standard Model to include gravity. Modeling the gravitational bound state of an electron via the Dirac equation of unified gravity [Rep. Prog. Phys. 88, 057802 (2025)], and taking the classical planetary state limit, we obtain orbital dynamics exhibiting a precession in agreement with general relativity. This demonstrates that key general relativistic effects in planetary motion can emerge directly from quantum field theory without invoking the geometric framework of general relativity.

Gravity of n-body planets from QFT, but not what else?

Where doesn't a QFT-extended or SQR or SQG or other Alternative Theory to GR correspond to real observations or to GR?

/? Testing of alternatives to general relativity:

- https://en.wikipedia.org/wiki/Alternatives_to_general_relati...

- https://news.ycombinator.com/item?id=43310933

Re: gravity: https://news.ycombinator.com/item?id=37968618

Anyways, what's what here:

CM: Classical Mechanics (Newton, Leibniz, LaGrange,)

Quantum theory (Planck, Einstein)

SR: Special Relativity (Einstein (1905))

Photoelectric effect (Einstein (1905))

Minkowski spacetime; Lorentz group, Poincaré group

GR: General Relativity (Einstein (1915) nb. student of Minkowkski)

QM: Quantum Mechanics

QG: Quantum Gravity

QFT: Quantum Field Theory

QED: Quantum Electrodynamics

QHD: Quantum Hydrodynamics

Gödel's Dust solution (1949)

Wheeler-Feynman Absorber Theory (1945, 1949)

SVT: Superfluid Vacuum Theory (1950,)

SPH: Smooth Particle Hydrodynamics (1970s,)

SM: Standard Model (1960s, 1970s, 2012 (Higgs boson confirmation))

LQG: Loop Quantum Gravity

QCD: Quantum Chromodynamics

GRMHD: General Relativistic Magnetohydrodynamics

SQS: Superfluid Quantum Space

SQR: Superfluid Quantum Relativity (Fedi,)

SQG: Superfluid Quantum Gravity

...

From https://news.ycombinator.com/item?id=43310970 :

> He said there's a newer version of this:

>> "Gravity as a fluid dynamic phenomenon in a superfluid quantum space. Fluid quantum gravity and relativity." (2015) https://hal.science/hal-01248015/ .. https://scholar.google.com/scholar?cites=5114463164920978709...

From https://news.ycombinator.com/item?id=38034923#38061551 :

> Fedi's [SQR Superfluid Quantum Relativity] also rejects a hard singularity boundary, describes curl and vorticity in fluids (with Gross-Pitaevskii,), and rejects antimatter

...

Evidence for scale invariance and magnetohydrodynamics:

"Braided Magnetic Flux Ropes Are Found at Both Human and Light Year Scales" (2025) https://news.ycombinator.com/item?id=44993092 :

>> One of the most exciting aspects of this research is that magnetohydrodynamics, the theory of magnetized plasmas, turns out to be fantastically scalable.