Bak, Sang EonSang EonBakParikh, MaulikMaulikParikhSarkar, SudiptaSudiptaSarkarSetti, FrancescoFrancescoSetti2025-08-312025-08-312023-05-0110.1007/JHEP05(2023)1252-s2.0-85159623916https://d8.irins.org/handle/IITG2025/26812We consider a timelike geodesic congruence in the presence of perturbative quantum fluctuations of the spacetime metric. We calculate the change in the volume of a bundle of geodesics due to such fluctuations and thereby obtain a quantum-gravitationally modified timelike Raychaudhuri equation. Quantum gravity generically increases the convergence of congruences and the production of caustics.trueClassical Theories of Gravity | Models of Quantum GravityArticlehttps://link.springer.com/content/pdf/10.1007/JHEP05(2023)125.pdf10298479May 20234125arJournal4WOS:000992025900004