Classical theories of gravity produce entanglement.

ABSTRACT: The unification of gravity and quantum mechanics remains one of the most profound open questions in science. With recent advances in quantum technology, an experimental idea first proposed by Richard Feynman¹ is now regarded as a promising route to testing this unification for the first time. The experiment involves placing a massive object in a quantum superposition of two locations and letting it gravitationally interact with another mass. If the two objects subsequently become entangled, this is considered unambiguous evidence that gravity obeys the laws of quantum mechanics. This conclusion derives from theorems that treat a classical gravitational interaction as a local interaction capable of transmitting only classical, not quantum, information^2-8. Here we exten

SUBMITTER: Aziz J 

PROVIDER: S-EPMC12545165 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature