Newtonion Quantum Gravity, WIMPs and Celestial Mechanics -- Summary of Results

TL;DR

This paper explores semi-classical quantum gravity in Newtonian settings, providing explicit solutions for various potentials, and discusses implications for planetary systems, galaxy evolution, and observable quantum effects in celestial mechanics.

Contribution

It introduces explicit solutions and a general implicit method for semi-classical equations in Newtonian quantum gravity, extending to multiple potentials and celestial phenomena.

Findings

Explicit solutions for isotropic harmonic oscillator potentials.

Insight into semi-classical orbit behavior near classical orbits.

Potential observable effects in planetary ring systems and galaxy evolution.

Abstract

We discuss the leading term in the semi-classical asymptotics of Newtonian quantum gravity for the Kepler problem. For dark matter, ice or dust particles in the gravitational field of a star or massive planet this explains how rapidly planets or ring systems can be formed by considering semi-classical equations for the asymptotic of the relevant Schrodinger wave function. We extend this treatment to isotropic harmonic oscillator potentials in two and three dimensions finding explicit solutions, with important applications to the Trojan asteroids. More detailed results on the restricted 3-body problem are in a forthcoming paper. Further in two dimensions, we find the explicit solutions for Newton's corresponding revolving orbits, explaining planetary perihelion advance in these terms. A general implicit approach to solving our equations is given using Cauchy characteristic curves giving necessary and sufficient conditions for existence and uniqueness of our solutions. Using this method we solve the two-dimensional Power Law Problem in our setting. Our methods give an insight to the behavior of semi-classical orbits in the neighborhood of classical orbits showing how complex constants of the motion emerge from the SO(4) symmetry group and what the particle densities have to be for circular spirals for different central potentials. Such constants have an important role in revolving orbits. Moreover, they and the aforementioned densities could give rise to observable effects in the early history of planetary ring systems. We believe the quantum spirals here associated with classical Keplerian elliptical orbits explain the evolution of galaxies, with a neutron star or black hole at their centre, from spiral to elliptical. In this connection we include a brief account of some recent results on quantum curvature, torsion as well as anti-gravity and spiral splitting, acid tests of our ideas.