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Generalized black hole entropy is von Neumann entropy
It has been argued that, while the individual terms in the generalized entropy, S gen= A/4
GN+ S ext, are ill-defined in the semiclassical limit, their sum is well-defined if one takes into …
GN+ S ext, are ill-defined in the semiclassical limit, their sum is well-defined if one takes into …
Pseudospectrum and black hole quasinormal mode instability
We study the stability of quasinormal modes (QNM) in asymptotically flat black hole
spacetimes by means of a pseudospectrum analysis. The construction of the Schwarzschild …
spacetimes by means of a pseudospectrum analysis. The construction of the Schwarzschild …
The global non-linear stability of the Kerr–de Sitter family of black holes
We establish the full global non-linear stability of the Kerr–de Sitter family of black holes, as
solutions of the initial value problem for the Einstein vacuum equations with positive …
solutions of the initial value problem for the Einstein vacuum equations with positive …
Infinite quantum twisting at the Cauchy horizon of rotating black holes
We present a numerical calculation of the expectation value of the quantum angular-
momentum current flux density for a scalar field in the Unruh state near the inner horizon of a …
momentum current flux density for a scalar field in the Unruh state near the inner horizon of a …
Spectral instability of quasinormal modes and strong cosmic censorship
Recent studies have shown that quasinormal modes suffer from spectral instabilities, a frailty
of black holes that leads to disproportional migration of their spectra in the complex plane …
of black holes that leads to disproportional migration of their spectra in the complex plane …
Quantum instability of the Cauchy horizon in Reissner–Nordström–deSitter spacetime
S Hollands, RM Wald, J Zahn - Classical and Quantum Gravity, 2020 - iopscience.iop.org
In classical general relativity, the values of fields on spacetime are uniquely determined by
their values at an initial time within the domain of dependence of this initial data surface …
their values at an initial time within the domain of dependence of this initial data surface …
Quasinormal modes and strong cosmic censorship
The fate of Cauchy horizons, such as those found inside charged black holes, is intrinsically
connected to the decay of small perturbations exterior to the event horizon. As such, the …
connected to the decay of small perturbations exterior to the event horizon. As such, the …
Strong cosmic censorship in charged black-hole spacetimes: still subtle
It was recently shown that strong cosmic censorship may be violated in highly charged black-
hole spacetimes living in a universe with a positive cosmological constant. Several follow-up …
hole spacetimes living in a universe with a positive cosmological constant. Several follow-up …
Strong cosmic censorship in de Sitter space
Recent work indicates that the strong cosmic censorship hypothesis is violated by nearly
extremal Reissner–Nordström–de Sitter black holes. It was argued that perturbations of such …
extremal Reissner–Nordström–de Sitter black holes. It was argued that perturbations of such …
Strong cosmic censorship in Kerr-Newman-de Sitter
A bstract Christodoulou's formulation of Strong Cosmic Censorship (SCC) holds true for Kerr-
de Sitter black holes. On the other hand, Reissner-Nordström-de Sitter black holes violate …
de Sitter black holes. On the other hand, Reissner-Nordström-de Sitter black holes violate …