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• W3100691928 endingPage "115009" @default.
• W3100691928 startingPage "115009" @default.
• W3100691928 abstract "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. However, it may occur that the spacetime under consideration extends beyond this domain of dependence, and fields, therefore, are not entirely determined by their initial data. This occurs, for example, in the well-known (maximally) extended Reissner-Nordstrom or Reissner-Nordstrom-deSitter (RNdS) spacetimes. The boundary of the region determined by the initial data is called the Cauchy horizon. It is located inside the black hole in these spacetimes. The strong cosmic censorship conjecture asserts that the Cauchy horizon does not, in fact, exist in practice because the slightest perturbation (of the metric itself or the matter fields) will become singular there in a sufficiently catastrophic way that solutions cannot be extended beyond the Cauchy horizon. Thus, if strong cosmic censorship holds, the Cauchy horizon will be converted into a final singularity, and determinism will hold. Recently, however, it has been found that, classically this is not the case in RNdS spacetimes in a certain range of mass, charge, and cosmological constant. In this paper, we consider a quantum scalar field in RNdS spacetime and show that quantum theory comes to the rescue of strong cosmic censorship. We find that for any state that is nonsingular (i.e., Hadamard) within the domain of dependence, the expected stress-tensor blows up with affine parameter, $V$, along a radial null geodesic transverse to the Cauchy horizon as $T_{VV} sim C/V^2$ with $C$ independent of the state and $C neq 0$ generically in RNdS spacetimes. This divergence is stronger than in the classical theory and should be sufficient to convert the Cauchy horizon into a strong curvature singularity." @default.
• W3100691928 created "2020-11-23" @default.
• W3100691928 creator A5022065755 @default.
• W3100691928 creator A5027288721 @default.
• W3100691928 creator A5053873303 @default.
• W3100691928 date "2020-05-12" @default.
• W3100691928 modified "2023-10-06" @default.
• W3100691928 title "Quantum instability of the Cauchy horizon in Reissner–Nordström–deSitter spacetime" @default.
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• W3100691928 doi "https://doi.org/10.1088/1361-6382/ab8052" @default.
• W3100691928 hasPublicationYear "2020" @default.
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