6 papers
Effective GUP-modified Raychaudhuri equation and black hole singularity: four models
Keagan Blanchette, Saurya Das, Saeed Rastgoo
The classical Raychaudhuri equation predicts the formation of conjugate points for a congruence of geodesics, in a finite proper time. This in conjunction with the Hawking-Penrose…
Propagation of quantum gravity-modified gravitational waves on a classical FLRW spacetime
Angel Garcia-Chung, James B. Mertens, Saeed Rastgoo +2
The linearized Einstein field equations provide a low-energy wave equation for the propagation of gravitational fields which may originate from a high energy source. Motivated by l…
Deformed algebra and the effective dynamics of the interior of black holes
Pasquale Bosso, Octavio Obregón, Saeed Rastgoo +1
We consider the classical Hamiltonian of the interior of the Schwarzschild black hole in Ashtekar-Barbero connection formalism. Then, inspired by generalized uncertainty principle…
Black hole singularity resolution via the modified Raychaudhuri equation in loop quantum gravity
Keagan Blanchette, Saurya Das, Samantha Hergott +1
We derive loop quantum gravity corrections to the Raychaudhuri equation in the interior of a Schwarzschild black hole and near the classical singularity. We show that the resulting…
Gravitation in terms of observables 2: the algebra of fundamental observables
Rodolfo Gambini, Saeed Rastgoo, Jorge Pullin
In a previous paper, we showed how to use the techniques of the group of loops to formulate the loop approach to gravity proposed by Mandelstam in the 1960's. Those techniques allo…
Effective dynamics of the Schwarzschild black hole interior with inverse triad corrections
Hugo A. Morales-Técotl, Saeed Rastgoo, Juan C. Ruelas
We reconsider the study of the interior of the Schwarzschild black hole now including inverse triad quantum corrections within loop quantization. We derive these corrections and sh…