Quantum gravity fluctuations in the timelike Raychaudhuri equation

Bak, Sang-Eon; Parikh, Maulik; Sarkar, Sudipta; Setti, Francesco

doi:10.1007/jhep05(2023)125

Quantum gravity fluctuations in the timelike Raychaudhuri equation

Journal Article · Tue May 16 00:00:00 EDT 2023 · Journal of High Energy Physics (Online)

DOI:https://doi.org/10.1007/jhep05(2023)125· OSTI ID:2421339

^[1]; Parikh, Maulik ^[2]; Sarkar, Sudipta ^[3]; Setti, Francesco ^[2]

Arizona State Univ., Tempe, AZ (United States); Arizona State Univ., Tempe, AZ (United States)
Arizona State Univ., Tempe, AZ (United States)
Indian Inst. of Technology (IIT), Gujarat (India)

We 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.

View Accepted Manuscript (DOE)

Research Organization:: Arizona State Univ., Tempe, AZ (United States)

Sponsoring Organization:: USDOE Office of Science (SC)

Grant/Contract Number:: SC0019470

OSTI ID:: 2421339

Journal Information:: Journal of High Energy Physics (Online), Journal Name: Journal of High Energy Physics (Online) Journal Issue: 5 Vol. 2023; ISSN 1029-8479

Publisher:: Springer NatureCopyright Statement

Country of Publication:: United States

Language:: English

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Quantum gravity fluctuations in the timelike Raychaudhuri equation

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