Quantum fields as Cosmic Censors in $(2 + 1)$-dimensions

Abstract : We discuss the effect of quantum fields on classical background spacetimes which contain timelike singularities. We do so for the case that the background is a (2 + 1)-dimensional BTZ spacetime, whether corresponding to a rotating black hole (M > 0) or to a naked conical singularity (M < 0). In the black hole case, scalar quantum fields render its Cauchy horizon unstable, while for the conical geometry, they produce a horizon around the naked singularity. Thus, quantum effects improve the predictability of the spacetime acting as effective Cosmic Censors.
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Submitted on : Sunday, August 26, 2018 - 9:57:19 AM
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Marc Casals, Alessandro Fabbri, Cristián Martínez, Jorge Zanelli. Quantum fields as Cosmic Censors in $(2 + 1)$-dimensions. 4th Amazonian Symposium on Physics, Sep 2017, Belem, Brazil. pp.1843011, ⟨10.1142/S0218271818430113⟩. ⟨hal-01861885⟩



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