Fast radio bursts and the stochastic lifetime of black holes in quantum gravity

Understand

Non-perturbative quantum gravity effects might allow a black-to-white hole transition.

• We revisit this increasingly popular hypothesis by taking into account the fundamentally random nature of the bouncing time.
• We show that if the primordial mass spectrum of black holes is highly peaked, the expected signal can in fact match the wavelength of the observed fast radio bursts.
• On the other hand, if the primordial mass spectrum is wide and smooth, clear predictions are suggested and the sensitivity to the shape of the spectrum is studied.