85 citations · 124 across the 6 of their papers we have counts for
6 papers
Late-time cosmic acceleration from quantum gravity
Daniele Oriti, Xiankai Pang
We deepen the analysis of the cosmological acceleration produced by quantum gravity dynamics in the formalism of group field theory condensate cosmology, treated at the coarse-grai…
Generalised Amit-Roginsky model from perturbations of 3d quantum gravity
Victor Nador, Daniele Oriti, Xiankai Pang +2
A generalised Amit-Roginsky vector model in flat space is obtained as the effective dynamics of pertubations around a classical solution of the Boulatov group field theory for 3d e…
Phantom-like dark energy from quantum gravity
Daniele Oriti, Xiankai Pang
We analyse the emergent cosmological dynamics corresponding to the mean field hydrodynamics of quantum gravity condensates, in the tensorial group field theory formalism. We focus…
Gravitational lensing of massive particles in Reissner-Nordström spacetime
Xiankai Pang, Junji Jia
In this work we study the deflection angle and gravitational lensing of both lightlike and timelike neutral rays in Reissner-Nordström (RN) spacetimes. The exact deflection an…
Existence and stability of circular orbits in static and axisymmetric spacetimes
Junji Jia, Xiankai Pang, Nan Yang
The existence and stability of timelike and null circular orbits (COs) in the equatorial plane of general static and axisymmetric (SAS) spacetime are investigated in this work. Usi…
Existence and stability of circular orbits in general static and spherically symmetric spacetimes
Junji Jia, Jiawei Liu, Xionghui Liu +4
The existence and stability of circular orbits (CO) in static and spherically symmetric (SSS) spacetime are important because of their practical and potential usefulness. In this p…