# Further evidence for the weak gravity -- cosmic censorship connection

**Authors:** Gary T. Horowitz, Jorge E. Santos

arXiv: 1901.11096 · 2022-10-12

## TL;DR

This paper explores the connection between the weak gravity conjecture and cosmic censorship in anti-de Sitter spacetime, demonstrating that the weak gravity bound is crucial for preventing counterexamples across various theories.

## Contribution

It generalizes previous results by showing the weak gravity bound's role in maintaining cosmic censorship when additional fields are included.

## Key findings

- Weak gravity bound prevents counterexamples in extended theories.
- Adding fields modifies the weak gravity bound but still preserves censorship.
- The weak gravity bound is often necessary to uphold cosmic censorship.

## Abstract

We have recently shown that a class of counterexamples to (weak) cosmic censorship in anti-de Sitter spacetime is removed if the weak gravity conjecture holds. Surprisingly, the minimum value of the charge to mass ratio necessary to preserve cosmic censorship is precisely the weak gravity bound. To further explore this mysterious connection, we investigate two generalizations: adding a dilaton or an additional Maxwell field. Analogous counterexamples to cosmic censorship are found in these theories if there is no charged matter. Even though the weak gravity bound is modified, we show that in each case it is sufficient to remove these counterexamples. In most cases it is also necessary.

## Full text

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## Figures

14 figures with captions in the complete paper: https://tomesphere.com/paper/1901.11096/full.md

## References

29 references — full list in the complete paper: https://tomesphere.com/paper/1901.11096/full.md

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Source: https://tomesphere.com/paper/1901.11096