Quantization Near Violent Singularities in Einstein-Yang-Mills Black Holes

TL;DR

This paper investigates the quantum effects near singularities in Einstein-Yang-Mills black holes, revealing how quantum considerations may alter classical oscillatory behaviors and singularity structures.

Contribution

It introduces an analysis of quantum modifications to classical singularities in Einstein-Yang-Mills black holes, combining quantum field theory and string theory perspectives.

Findings

Quantum effects potentially smooth out classical singularities.

Oscillations near singularities are affected by quantum corrections.

Classical oscillatory behavior is modified by quantum considerations.

Abstract

Classical singularities inside black holes in the Einstein-Yang-Mills theory exhibit unusual features. Only for discrete values of the black hole mass one encounters singularities of the Schwarzschild type (timelike) and the Reissner-Nordstrom type (spacelike). For a generic mass the approach to singularity is not smooth: the metric oscillates with an infinitely growing amplitude and decreasing period. In spite of some similarity with the BKL oscillations, here the behavior is not chaotic. However the oscillation amplitude exceeds classical limits after few cycles, so the question arises how this behavior gets modified by quantum effects. We discuss this issue both in the framework of QFT and in the string theory.