A quantum oscillator model for entropic gravity

TL;DR

This paper models the microscopic degrees of freedom in entropic gravity using quantum harmonic oscillators, leading to modified gravitational laws and Einstein equations at large scales.

Contribution

It introduces a quantum oscillator model for the 'bits' in entropic gravity, providing a microscopic basis and deriving corrections to gravity.

Findings

Reproduces Newton's law at small distances

Predicts deviations from classical gravity at large distances

Modifies Einstein equations based on the oscillator model

Abstract

In Verlinde's theory of entropic gravity, the internal degrees of freedom are marked by "bits", but the microscopic origin of "bits" is unknown hitherto. To this direction, we adopt the quantum harmonic oscillators to naively model the internal degrees of freedom. In this model, the equipartition relation is modified at the low temperature. The Newton's law and Poisson's equation of gravity are reproduced at small distances, but they receive appreciable corrections at large distances. Geometrization of gravity for this model is explored, resulting in modifications to Einstein equations.