Probing quantum correlations in non-degenerate hyper-Raman process Moumita Das, Biswajit Sen, Ankur Sensharma, Kishore Thapliyal and Anirban Pathak Eur. Phys. J. Plus, 140 3 (2025) 233 Published online: 18 March 2025 DOI: 10.1140/epjp/s13360-025-06161-y