Year: 1995
Type: preprint
Abstract: We obtain the $ε<2$ new extremal ground states of a two-dimensional (2D) charged black hole where $ε$ is the dilaton coupling parameter for the Maxwell term. The stability analysis is carried out for all these extremal black holes. It is found that the shape of potentials to an on-coming tachyon (as a spectator) take all barrier-well types. These provide the bound state solutions, which imply that they are unstable. We conclude that the 2D, $ε<2$ extremal black holes should not be considered as a toy model for the stable endpoint of the Hawking evaporation.
Source: arXiv (Cornell University)
Authors: Lee, H. W., Myung, Y. S., Kim, Jin Young
Institutions: Inje University, Dongseo University
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W1587266809