Tests of Quantum Gravity near Measurement Events

TL;DR

This paper proposes experiments to test quantum gravity by comparing quantum entanglement generation with classical space-time models, aiming for more feasible tests of quantum gravitational effects.

Contribution

It introduces less challenging experimental setups to distinguish quantum gravity effects from classical space-time theories in mesoscopic systems.

Findings

Proposed experiments can differentiate quantum from classical gravity effects.

Potential for more feasible tests of quantum gravity phenomena.

Insights into the nature of space-time at mesoscopic scales.

Abstract

Experiments have recently been proposed testing whether quantum gravitational interactions generate entanglement between adjacent masses in position superposition states. We propose potentially less challenging experiments that test quantum gravity against theories with classical space-times defined by postulating semi-classical gravity (or classical effects of similar scale) for mesoscopic systems.