Spontaneous loss of charge of the Reissner-Nordstrom black hole

TL;DR

This paper investigates the vacuum instability of a charged scalar field around a Reissner-Nordstrom black hole, revealing that the initial black hole evaporation stage can be driven by a Schwinger-like effect, indicating spontaneous charge loss.

Contribution

It introduces a functional method to analyze vacuum instability and demonstrates the role of Schwinger-like effects in black hole evaporation.

Findings

Vacuum instability of charged scalar fields near Reissner-Nordstrom black holes.

First stage of black hole evaporation driven by Schwinger-like effect.

Spontaneous charge loss from the black hole.

Abstract

In this paper, we study by a functional method the vacuum instability of a charged scalar field, when it is quantized in the background of the Reissner-Nordtrom black hole; we also show that the first stage of the evaporation process of the black hole can be driven by a Schwinger-like effect.