Classical Gravity Cannot Mediate Entanglement by Local Means

TL;DR

This paper argues that classical gravity cannot generate entanglement between distant masses through local means, emphasizing the necessity of quantum features in gravity for such phenomena.

Contribution

It refutes recent claims that classical gravity can mediate entanglement, reaffirming the need for quantum properties in gravitational interactions for entanglement.

Findings

Classical gravity cannot produce entanglement via local means.

Quantum features are essential in gravity for entanglement to occur.

The paper clarifies misconceptions about gravity and entanglement.

Abstract

We rebut a recent paper that claims that classical gravity can entangle two massive superpositions by local means. We refute the misconceptions appearing in this paper and confirm that the quantum features are necessary in the gravitational field if it can lead to entanglement by local propagation between distant masses.