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arXiv · 2511.02683

The simple reason why classical gravity can entangle

Andrea Di Biagio
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Abstract

Ever since gravity-induced entanglement (GIE) experiments have been proposed as a witness of the quantum nature of gravity, more and more theories of classical gravity coupled to quantum matter have been shown to predict GIE, despite the existence of several theory-independent no-go theorems purportedly claiming that it should not be possible. This note explains why this is possible, and why this makes the study GIE experiments, and low-energy quantum gravity effects in general, an even more urgent matter in quantum gravity research.

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Andrea Di Biagio. 2025-11-04. The simple reason why classical gravity can entangle. https://arxiv.org/abs/2511.02683

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