Black-hole evaporation, cosmic censorship, and a quantum lower bound on the Bekenstein–Hawking temperature
The Ruppin Academic Center, 40250, Emeq Hefer, Israel
2 The Hadassah Academic College, 91010, Jerusalem, Israel
* e-mail: email@example.com
Accepted: 31 July 2018
Published online: 9 August 2018
The semi-classical Hawking evaporation process of Reissner–Nordström black holes is analyzed. It is shown that this quantum mechanism may turn a near-extremal black-hole spacetime with into an horizonless naked singularity, thus violating the Penrose cosmic censorship conjecture. It is therefore conjectured that, within the framework of a self-consistent quantum theory of gravity, the Bekenstein–Hawking temperature should be bounded from below by the simple relation .
© The Author(s), 2018