A Brief Review of Wormhole Cosmic Censorship

Fuente: arXiv
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Autori principali: Bixano, Leonel, Sarmiento-Alvarado, I. A., Matos, Tonatiuh
Natura: Preprint
Pubblicazione: 2026
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author Bixano, Leonel
Sarmiento-Alvarado, I. A.
Matos, Tonatiuh
author_facet Bixano, Leonel
Sarmiento-Alvarado, I. A.
Matos, Tonatiuh
contents Spacetime singularities, in the sense that curvature invariants are infinite at some point or region, are thought to be impossible to observe, and must be hidden within an event horizon. This conjecture is called Cosmic Censorship (CC), and was formulated by Penrose. Here we review another type of CC where spacetime singularities are causally disconnected from the universe, because the throat of a wormhole ``sucks in'' the geodesics and prevents them from making contact with the singularity. In this work, we present a series of exact solutions to the Einstein--Maxwell--Dilaton equations that feature a ring singularity; that is, the curvature invariants are singular in this ring, but the ring is causally disconnected from the universe so that no geodesics can touch it. This extension of CC is called Wormhole Cosmic Censorship.
format Preprint
id arxiv_https___arxiv_org_abs_2602_16116
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle A Brief Review of Wormhole Cosmic Censorship
Bixano, Leonel
Sarmiento-Alvarado, I. A.
Matos, Tonatiuh
General Relativity and Quantum Cosmology
83C15, 83E20, 83C75, 83C47, 83C50, 83C57
Spacetime singularities, in the sense that curvature invariants are infinite at some point or region, are thought to be impossible to observe, and must be hidden within an event horizon. This conjecture is called Cosmic Censorship (CC), and was formulated by Penrose. Here we review another type of CC where spacetime singularities are causally disconnected from the universe, because the throat of a wormhole ``sucks in'' the geodesics and prevents them from making contact with the singularity. In this work, we present a series of exact solutions to the Einstein--Maxwell--Dilaton equations that feature a ring singularity; that is, the curvature invariants are singular in this ring, but the ring is causally disconnected from the universe so that no geodesics can touch it. This extension of CC is called Wormhole Cosmic Censorship.
title A Brief Review of Wormhole Cosmic Censorship
topic General Relativity and Quantum Cosmology
83C15, 83E20, 83C75, 83C47, 83C50, 83C57
url https://arxiv.org/abs/2602.16116