of this is that the antiparticle
created can be viewed as the normal particle
, but traveling backward in time
. In this view, the particle escapes from the black hole
, traveling backward in time, and then scatters, and reverting to normal timeflow.
Yet another view is that a particle can quantum tunnel
out of a black hole. The chances of this happening increase as the black hole shrinks (shorter distance to tunnel) and thus a small black hole emits more radiation than a large one. The energy output increases greatly as the black hole gets miniscule, ending in a explosion of sorts as the hole evaporates completely, having lost all of its mass
The hawking radiation corresponds exactly to perfectly normal thermal
radiation from a blackbody
object, and can be used to calculate the 'surface temperature' of the black hole.