Quantum radiation of a collapsing shell in three-dimensional AdS spacetime revisited

Abstract

In three-dimensional AdS space, we consider the gravitational collapse of dust shell and then investigate the quantum radiation from the collapsing shell by employing the functional Schrödinger formalism. In the formation of the BTZ black hole, the interior geometry of the shell can be chosen as either the massless black hole or the global AdS space. In the incipient black hole limit, we obtain the wave function exactly from the time-dependent Schrödinger equation for a massless scalar field. Then, we show that the occupation number of excited states can be written by analytic expressions, and the radiation temperature is in agreement with the Hawking temperature, irrespective of the specific choice of the interior geometries.

15 pages, 1 figure, references and comments are added, published version in JHEP

References in corpus (4)

• Observation of Incipient Black Holes and the Information Loss Problem
• Quantum Radiation from Quantum Gravitational Collapse
• Unitarity in Reissner-Nordström background: striding away from information loss
• Hawking-like radiation and the density matrix for an infalling observer during gravitational collapse