Acceleration of particles by nonrotating charged black holes

Understand

Recently, in the series of works a new effect of acceleration of particles by black holes was found.

• Under certain conditions, the energy in the centre of mass frame can become infinitely large.
• The essential ingredient of such effect is the rotation of a black hole.
• In the present Letter, we argue that the similar effect exists for a nonrotating but charged black hole even for the simplest case of radial motion of particles in the Reissner-Nordstr\"om background.