Author(s): Panagiotis Dorlis, N. E. Mavromatos, Sarben Sarkar, and Sotirios-Neilos Vlachos It is shown that both standard general relativity (GR) and Chern-Simons (CS) gravity, the latter containing chiral gravitational anomaly terms, seed the production of pairs of entangled gravitons in a multi-mode squeezed state. This involves the interaction of gravitons with the axionic cloud surrou… [Phys. Rev. Lett. 135, 151501] Published Wed Oct 08, 2025