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End point of Hawking radiation

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The formation and semiclassical evaporation of two-dimensional black holes is studied in an exactly solvable model. Above a certain threshold energy flux, collapsing matter forms a singularity inside an apparent horizon. As the black hole evaporates the apparent horizon recedes and meets the singularity in a finite proper time. The singularity emerges naked, and future evolution of the geometry requires boundary conditions to be imposed there. There is a natural choice of boundary conditions which matches the evaporated black hole solution onto the linear dilaton vacuum. Below the threshold energy flux no horizon forms and boundary conditions can be imposed where infalling matter is reflected from a timelike boundary. All information is recovered at spatial infinity in this case.

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RUSSO, J. g. (jorge guillermo), SUSSKIND, Leonard, THORLACIUS, Lárus. End point of Hawking radiation. _Physical Review D_. 1992. Vol. 46, núm. 8, pàgs. 3444-3449. [consulta: 10 de gener de 2026]. ISSN: 0556-2821. [Disponible a: https://hdl.handle.net/2445/12479]

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