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arXiv · 1012.2134

Dense spectrum of resonances and particle capture in a near-black-hole metric

V. V. Flambaum·G. H. Gossel·G. F. Gribakin
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Abstract

We show that a quantum scalar particle in the gravitational field of a massive body of radius R which slightly exceeds the Schwarzschild radius r_s, possesses a dense spectrum of narrow resonances. Their lifetimes and density tend to infinity in the limit R -> r_s. We determine the cross section of the particle capture into these resonances and show that it is equal to the absorption cross section for a Schwarzschild black hole. Thus, a non-singular static metric acquires black-hole properties before the actual formation of a black hole.

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V. V. Flambaum, G. H. Gossel, G. F. Gribakin. 2012-03-13. Dense spectrum of resonances and particle capture in a near-black-hole metric. https://doi.org/10.1103/physrevd.85.084027

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