482 citations · 11.4k across the 295 of their papers we have counts for
8 papers · 1 filter
Apparent shape of super-spinning black holes
Cosimo Bambi, Katherine Freese
We consider the possibility that astrophysical Black Holes (BHs) can violate the Kerr bound; i.e., they can have angular momentum greater than BH mass, . We discuss implicat…
Implications of primordial black holes on the first stars and the origin of the super--massive black holes
Cosimo Bambi, Douglas Spolyar, Alexander D. Dolgov +2
If the cosmological dark matter has a component made of small primordial black holes, they may have a significant impact on the physics of the first stars and on the subsequent for…
Gravitational production of KK states
Cosimo Bambi, Federico R. Urban
Gravitational particle production in the context of braneworlds is considered from a phenomenological point of view. The production of KK modes for bulk fields is discussed and the…
Black holes as antimatter factories
Cosimo Bambi, Alexander D. Dolgov, Alexey A. Petrov
We consider accretion of matter onto a low mass black hole surrounded by ionized medium. We show that, because of higher mobility of protons than electrons, the black hole would ac…
A revision of the Generalized Uncertainty Principle
Cosimo Bambi
The Generalized Uncertainty Principle arises from the Heisenberg Uncertainty Principle when gravity is taken into account, so the leading order correction to the standard formula i…
A note on the black hole information paradox in de Sitter spacetimes
Cosimo Bambi
The possibility of stable or quasi--stable Planck mass black hole remnants as solution to the black hole information paradox is commonly believed phenomenologically unacceptable: s…