Exploring the nature of gravity with quantum information methods

• URL: http://arxiv.org/abs/2512.20429v1
• Date: Tue, 23 Dec 2025 15:16:16 GMT
• Title: Exploring the nature of gravity with quantum information methods
• Authors: Bruna Sahdo, Natália Salomé Móller,
• Abstract summary: We discuss the basic principles of two current research streams that use this approach.<n>The first explores a phenomenon known as gravitationally induced entanglement, which aims to infer whether the gravitational field responsible for the interaction between two massive bodies must be quantized or not.<n>The second stream investigates causal structures, thereby providing indirect evidence that spacetime may exhibit non-classical behavior.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: The aim of this article is to provide an introduction to the use of quantum information methods for investigating the interface between quantum theory and gravity. To this end, we discuss the basic principles of two current research streams that use this approach. The first one explores a phenomenon known as gravitationally induced entanglement, which aims to infer whether the gravitational field responsible for the interaction between two massive bodies must be quantized or not. The second stream investigates causal structures, thereby providing indirect evidence that spacetime may exhibit non-classical behavior. Before presenting these topics, we briefly review some fundamental concepts and experiments from quantum information theory, such as the Mach-Zehnder interferometer, the Stern-Gerlach experiment, Bell inequalities and entanglement, and the language of quantum circuits.

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