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gr-qc2023★ 3 cited
Quantum-Gravitational Null Raychaudhuri Equation
Sang-Eon Bak, Maulik Parikh, Sudipta Sarkar +1
We consider a congruence of null geodesics in the presence of a quantized spacetime metric. The coupling to a quantum metric induces fluctuations in the congruence; we calculate th…
gr-qc2022★ 7 cited
Quantum Gravity Fluctuations in the Timelike Raychaudhuri Equation
Sang-Eon Bak, Maulik Parikh, Sudipta Sarkar +1
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 geodes…