Vlatko Vedral, with Chiara Marletto, proposed using gravitationally generated quantum entanglement as an indirect witness of quantum features of gravity. Their 2017 argument considers two masses in spatial quantum superpositions and asks whether their gravitational interaction can entangle them.[ref]
Under the assumed local mediation and initial-independence conditions, a mediator restricted to classical commuting information cannot generate the required quantum entanglement. The conclusion is conditional on that model of mediation and exclusion of other entangling interactions. The paper proposes a test; it does not report an observed laboratory detection of quantum gravity.
Articles by others on the same topic
Vlatko Vedral is a physicist known for his work in the fields of quantum information science, quantum mechanics, and quantum computing. He has contributed to the understanding of topics such as quantum entanglement, the foundations of quantum theory, and the implications of quantum mechanics for information theory. Vedral has also published scientific papers and books exploring these themes and has engaged in public discussions regarding the philosophical implications of quantum phenomena.