Tunnelling across a trapped region and out of a black hole

Edward Wilson-Ewing

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arXiv · 2604.06480

Tunnelling across a trapped region and out of a black hole

Edward Wilson-Ewing

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Abstract

The quantum field theory for a massless scalar field on a two-dimensional non-singular black hole spacetime with an outer and an inner horizon predicts that there is a non-vanishing probability for a particle localized inside the inner horizon to tunnel out of the black hole. The tunnelling probability monotonically asymptotes to a maximal value that is inversely proportional to the sum of the inverse surface gravities of the inner and outer horizons of the black hole.

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Edward Wilson-Ewing. 2026-09-18. Tunnelling across a trapped region and out of a black hole. https://arxiv.org/abs/2604.06480

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