Oscillating cosmological force modifies Newtonian dynamics

TL;DR

This paper investigates how rapid quantum oscillations of the universe's scale factor can alter the cosmological force in Newtonian gravity, potentially explaining galaxy-scale dynamics and the cosmic clock behavior.

Contribution

It introduces a novel quantum oscillation-based correction to the cosmological force, offering a new perspective on modifications to Newtonian dynamics at galactic scales.

Findings

Quantum oscillations significantly change the sign and magnitude of the cosmological force.

Modified force could explain galaxy rotation curves without dark matter.

Potential link to observed cosmic clock behavior in low redshift galaxies.

Abstract

In the Newtonian limit of general relativity force acting on a test mass in a central gravitational field is conventionally defined by the attractive Newtonian gravity (inverse square) term plus a small repulsive cosmological force, which is proportional to the slow acceleration of the universe expansion. In this paper we consider the cosmological force correction due to fast quantum oscillations of the universe scale factor, which were suggested recently by Wang et al. (Phys. Rev. D 95, 103504 (2017)) as a potential solution of the cosmological constant problem. These fast fluctuations of the cosmological scale factor induce strong changes to the current sign and magnitude of the average cosmological force, thus making it one of the potential probable causes of the modification of Newtonian dynamics in galaxy-scale systems. The modified cosmological force may be responsible for the recently discovered "cosmic clock" behaviour of disk galaxies in the low redshift universe.