Quantumness near a Schwarzschild black hole S. Haddadi, M. A. Yurischev, M. Y. Abd-Rabbou, M. Azizi, M. R. Pourkarimi and M. Ghominejad Eur. Phys. J. C, 84 1 (2024) 42 Published online: 17 January 2024 DOI: 10.1140/epjc/s10052-024-12393-6