Cosmic censorship in quantum Einstein gravity
نویسندگان
چکیده
منابع مشابه
Cosmic Censorship in Quantum Gravity
We study cosmic censorship in the Reissner-Nordstrom charged black hole by means of quantum gravity holding near the apparent horizons. We consider a gedanken experiment whether or not a black hole with the electric charge Q less than the mass M (Q < M) could increase its charge to go beyond the extremal limit Q = M by absorbing the external charged matters. If the black hole charge could excee...
متن کاملCosmic Censorship: The Role of Quantum Gravity
The cosmic censorship hypothesis introduced by Penrose thirty years ago is still one of the most important open questions in classical general relativity. In this essay we put forward the idea that cosmic censorship is intrinsically a quantum gravity phenomena. To that end we construct a gedanken experiment in which cosmic censorship is violated within the purely classical framework of general ...
متن کاملCosmic censorship in 2-dimensional dilaton gravity
Abstract. The global structure of 2-dimensional dilaton gravity is studied, attending in particular to black holes and singularities. A gravitational energy is defined and shown to be positive at spatial singularities and negative at temporal singularities. Trapped points are defined, and it is shown that spatial singularities are trapped and temporal singularities are not. Thus a local form of...
متن کاملCosmic Censorship in Two - Dimensional Gravity ⋆ Jorge
A weak version of the cosmic censorship hypothesis is implemented as a set of boundary conditions on exact semi-classical solutions of two-dimensional dilaton gravity. These boundary conditions reflect low-energy matter from the strong coupling region and they also serve to stabilize the vacuum of the theory against decay into negative energy states. Information about low-energy incoming matter...
متن کاملGamma-Ray Bursts and Quantum Cosmic Censorship∗
Gamma-ray bursts are believed to result from the coalescence of binary neutron stars. However, the standard proposals for conversion of the gravitational energy to thermal energy have difficulties. We show that if the merger of the two neutron stars results in a naked singularity, instead of a black hole, the ensuing quantum particle creation can provide the requisite thermal energy in a straig...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Classical and Quantum Gravity
سال: 2017
ISSN: 0264-9381,1361-6382
DOI: 10.1088/1361-6382/aa6788