English

A causality preserving evolution of a pair of strings

General Relativity and Quantum Cosmology 2022-12-02 v2

Abstract

As shown by Gott, a pair of straight cosmic strings moving in opposite directions, when they have suitable speed and impact parameter, produce closed timelike curves. I argue in this paper that there always is a not-so-frightening alternative: the Universe may prefer to produce a certain (surprisingly simple and absolutely mild) singularity instead.

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Cite

@article{arxiv.2208.07324,
  title  = {A causality preserving evolution of a pair of strings},
  author = {Serguei Krasnikov},
  journal= {arXiv preprint arXiv:2208.07324},
  year   = {2022}
}

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R2 v1 2026-06-25T01:43:13.201Z