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No, classical gravity does not entangle quantized matter fields

Lajos Di\'osi
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⚡ Quantum Brief
Physicist Lajos Diósi directly challenges a 2025 Nature study claiming classical gravity can entangle quantum matter fields, calling the result incorrect through a recalculated quantum field theory analysis. The disputed paper argued unquantized gravity could generate entanglement when matter is treated via quantum field theory—the gold standard for such systems—but Diósi’s re-examination found no evidence of this effect. Diósi’s critique hinges on an "elementary" quantum field recalculation of the original example, demonstrating the absence of entanglement where the prior study asserted its presence. This rebuttal underscores ongoing tensions in unifying quantum mechanics and general relativity, particularly whether classical gravity can influence quantum systems without full quantization. The preprint, submitted to arXiv in November 2025, targets specialists in quantum physics and general relativity, framing the debate as foundational rather than experimental.
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Quantum Physics arXiv:2511.00852 (quant-ph) [Submitted on 2 Nov 2025] Title:No, classical gravity does not entangle quantized matter fields Authors:Lajos Diósi View a PDF of the paper titled No, classical gravity does not entangle quantized matter fields, by Lajos Di\'osi View PDF HTML (experimental) Abstract:In their recent work [Nature,646,813(2025)], Aziz and Howl claim that classical (unquantized) gravity produces entanglement of quantized matter if matter is treated within quantum field theory which is, no doubt, our ultimate theory to use. However, an elementary quantum field re-calculation of the authors' example shows that there is no entangling effect. Comments: Subjects: Quantum Physics (quant-ph); General Relativity and Quantum Cosmology (gr-qc) Cite as: arXiv:2511.00852 [quant-ph] (or arXiv:2511.00852v1 [quant-ph] for this version) https://doi.org/10.48550/arXiv.2511.00852 Focus to learn more arXiv-issued DOI via DataCite (pending registration) Submission history From: Lajos Diósi [view email] [v1] Sun, 2 Nov 2025 08:26:45 UTC (4 KB) Full-text links: Access Paper: View a PDF of the paper titled No, classical gravity does not entangle quantized matter fields, by Lajos Di\'osiView PDFHTML (experimental)TeX Source view license Current browse context: quant-ph new | recent | 2025-11 Change to browse by: gr-qc References & Citations INSPIRE HEP NASA ADSGoogle Scholar Semantic Scholar export BibTeX citation Loading... BibTeX formatted citation × loading... Data provided by: Bookmark Bibliographic Tools Bibliographic and Citation Tools Bibliographic Explorer Toggle Bibliographic Explorer (What is the Explorer?) Connected Papers Toggle Connected Papers (What is Connected Papers?) Litmaps Toggle Litmaps (What is Litmaps?) scite.ai Toggle scite Smart Citations (What are Smart Citations?) Code, Data, Media Code, Data and Media Associated with this Article alphaXiv Toggle alphaXiv (What is alphaXiv?) Links to Code Toggle CatalyzeX Code Finder for Papers (What is CatalyzeX?) DagsHub Toggle DagsHub (What is DagsHub?) GotitPub Toggle Gotit.pub (What is GotitPub?) Huggingface Toggle Hugging Face (What is Huggingface?) Links to Code Toggle Papers with Code (What is Papers with Code?) ScienceCast Toggle ScienceCast (What is ScienceCast?) Demos Demos Replicate Toggle Replicate (What is Replicate?) Spaces Toggle Hugging Face Spaces (What is Spaces?) Spaces Toggle TXYZ.AI (What is TXYZ.AI?) Related Papers Recommenders and Search Tools Link to Influence Flower Influence Flower (What are Influence Flowers?) Core recommender toggle CORE Recommender (What is CORE?) Author Venue Institution Topic About arXivLabs arXivLabs: experimental projects with community collaborators arXivLabs is a framework that allows collaborators to develop and share new arXiv features directly on our website. Both individuals and organizations that work with arXivLabs have embraced and accepted our values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only works with partners that adhere to them. Have an idea for a project that will add value for arXiv's community? Learn more about arXivLabs. Which authors of this paper are endorsers? | Disable MathJax (What is MathJax?)

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