On the Origin of Entropic Gravity and Inertia

TL;DR

This paper explores the idea that gravity and inertia originate from quantum information loss at horizons, linking emergent quantum field theory with entropic and thermodynamic gravity frameworks.

Contribution

It proposes a connection between quantum field emergence, entropic gravity, and thermodynamics, identifying horizons and quantum fluctuations as key elements.

Findings

Holographic screens are identified as local Rindler horizons.

Quantum fluctuations underpin the thermodynamic nature of gravity.

Inertia is related to dragging Rindler horizons.

Abstract

It was recently suggested that quantum field theory is not fundamental but emerges from the loss of phase space information about matter crossing causal horizons. Possible connections between this formalism and Verlinde's entropic gravity and Jacobson's thermodynamic gravity are proposed. The holographic screen in Verlinde's formalism can be identified as local Rindler horizons and its entropy as that of the bulk fields beyond the horizons. This naturally resolves some issues on entropic gravity. The quantum fluctuation of the fields is the origin of the thermodynamic nature of entropic gravity. It is also suggested that inertia is related to dragging Rindler horizons.