PreprintarXiv licencearXiv
Non-linear evolution of five-dimensional black strings in effective field theory
Abstract
We use numerical relativity to study the non-linear instability of five-dimensional black strings in Einstein-Gauss-Bonnet gravity. Black strings evolve into a series of black holes joined by thinner string-like segments, but key features of the dynamics depend on the sign of the Gauss-Bonnet coupling. For positive coupling, favored by UV considerations, the growth of curvature invariants is limited within the validity of effective field theory (EFT), suggesting a mechanism for restoring weak cosmic censorship. For negative coupling this cap is absent and curvatures may grow until the EFT breaks down.
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BibTeX
@misc{figueras2026nonlinear,
title = {{Non-linear evolution of five-dimensional black strings in effective field theory}},
author = {Pau Figueras and Áron D. Kovács and Shunhui Yao},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2606.05319},
eprint = {2606.05319},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2606.05319},
}
RIS
TY - UNPB
TI - Non-linear evolution of five-dimensional black strings in effective field theory
AU - Pau Figueras
AU - Áron D. Kovács
AU - Shunhui Yao
PY - 2026
DA - 2026/10/12
PB - arXiv
DO - 10.48550/arxiv.2606.05319
UR - https://arxiv.org/abs/2606.05319
AB - We use numerical relativity to study the non-linear instability of five-dimensional black strings in Einstein-Gauss-Bonnet gravity. Black strings evolve into a series of black holes joined by thinner string-like segments, but key features of the dynamics depend on the sign of the Gauss-Bonnet coupling. For positive coupling, favored by UV considerations, the growth of curvature invariants is limited within the validity of effective field theory (EFT), suggesting a mechanism for restoring weak cosmic censorship. For negative coupling this cap is absent and curvatures may grow until the EFT breaks down.
ER -