Cosmic censorship in overcharging a static charged black hole via charged particle absorption Seminar

There is a claim that a static charged black hole can absorb a particle and be driven toward an overcharged state, which seems to be a counter example to the weak cosmic censorship conjecture. In this talk, we argue that there is no supporting evidence that indicates the violation of the cosmic censorship in the proposed process if we take into account the back reaction effects of a charged particle. While there are wide variety of back reaction effects of the particle, we show that all the back reaction effects can be properly taken into account when we consider the trajectory of a particle on the border between the plunge and bounce orbits. Particularly, we show that the charged black hole can never be overcharged via the absorption of a charged particle in such marginal cases. Since all the plunge orbits are expected to have a higher energy than the marginal orbit, thus, there is no supporting evidence that indicates the violation of the cosmic censorship in overcharging process.