English

Angle deficit & non-local gravitoelectromagnetism around a slowly spinning cosmic string

General Relativity and Quantum Cosmology 2021-02-16 v2 High Energy Physics - Theory

Abstract

Cosmic strings, as remnants of the symmetry breaking phase in the Early Universe, may be susceptible to non-local physics. Here we show that the presence of a Poincar\'e-invariant non-locality -- parametrized by a factor exp(2)\exp(-\Box\ell^2) -- regularizes the gravitational field and thereby changes the properties of spacetime: it is now simply connected and the angle deficit around the cosmic string becomes a function of the radial distance. Similar changes occur for the non-local gravitomagnetic field of a rotating cosmic string, and we translate these mathematical facts into the language of non-local gravitoelectromagnetism and thereby provide a physical interpretation. We hope that these insights might prove helpful in the search for traces of non-local physics in our Universe.

Keywords

Cite

@article{arxiv.2003.13847,
  title  = {Angle deficit & non-local gravitoelectromagnetism around a slowly spinning cosmic string},
  author = {Jens Boos},
  journal= {arXiv preprint arXiv:2003.13847},
  year   = {2021}
}

Comments

v2: Matches published version, 10 pages, 1 figure. v1: 9 pages, 1 figure. Essay written for the Gravity Research Foundation 2020 Awards for Essays on Gravitation, awarded an Honorable Mention

R2 v1 2026-06-23T14:32:56.315Z