English

A nonsingular spacetime defect

General Relativity and Quantum Cosmology 2015-06-15 v8 High Energy Physics - Theory

Abstract

A nonsingular localized static classical solution is constructed for standard Einstein gravity coupled to an SO(3)×SO(3)SO(3)\times SO(3) chiral model of scalars (Skyrme model). This solution corresponds to a spacetime defect and its construction proceeds in three steps. First, an \textit{Ansatz} is presented for a solution with nonsimply connected topology of the spacetime manifold. Second, an exact vacuum solution of the reduced field equations is obtained. Third, matter fields are included and a particular exact solution of the reduced field equations is found. The latter solution has a diverging total energy, but its existence at least demonstrates that a nonsingular defect-type solution having nonsimply connected topology is possible with nontrivial matter fields.

Keywords

Cite

@article{arxiv.1303.7219,
  title  = {A nonsingular spacetime defect},
  author = {F. R. Klinkhamer and C. Rahmede},
  journal= {arXiv preprint arXiv:1303.7219},
  year   = {2015}
}

Comments

20 pages, v8: published version

R2 v1 2026-06-21T23:49:55.538Z