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12 papers · 2 filters
Could the black hole singularity be a field singularity?
Guillem Domènech, Atsushi Naruko, Misao Sasaki +1
In the wake of interest to find black hole solutions with scalar hair, we investigate the effects of disformal transformations on static spherically symmetric space-times with a no…
Distance between collapsing matter and trapping horizon in evaporating black holes
Pei-Ming Ho, Yoshinori Matsuo, Yuki Yokokura
Assuming that the vacuum energy-momentum tensor is not exceptionally large, we consider 4D evaporating black holes with spherical symmetry and evaluate the proper distance bet…
Threshold of primordial black hole formation in Eddington-inspired-Born-Infeld gravity
Che-Yu Chen
It is believed that primordial black holes (PBHs), if they exist, can serve as a powerful tool to probe the early stage of the cosmic history. Essentially, in the radiation dominat…
Eddington-inspired-Born-Infeld tensorial instabilities neutralized in a quantum approach
Imanol Albarran, Mariam Bouhmadi-López, Che-Yu Chen +1
The recent direct detection of gravitational waves has highlighted the huge importance of the tensorial modes in any extended gravitational theory. One of the most appealing approa…
Annihilation-to-nothing: a quantum gravitational boundary condition for the Schwarzschild black hole
Mariam Bouhmadi-López, Suddhasattwa Brahma, Che-Yu Chen +2
The interior of a static Schwarzschild metric can be written in terms of two functions, similar to some models of anisotropic cosmology. With a suitable choice of canonical variabl…
Eikonal black hole ringings in generalized energy-momentum squared gravity
Che-Yu Chen, Pisin Chen
In the scope of black hole spectroscopy, several attempts have been made in the past decades in order to test black holes or gravitational theories via black hole quasinormal modes…