The Raychaudhuri equation for a quantized timelike geodesic congruence Shibendu Gupta Choudhury, Ananda Dasgupta and Narayan Banerjee Eur. Phys. J. C, 81 10 (2021) 906 Published online: 14 October 2021 DOI: 10.1140/epjc/s10052-021-09714-4