1012.2134 (V. V. Flambaum et al.)

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

V. V. Flambaum, G. H. Gossel, G. F. Gribakin

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.

View original: http://arxiv.org/abs/1012.2134