NUT charge in linearized infinite derivative gravity

Ivan Kolar*, Anupam Mazumdar

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

19 Citations (Scopus)
87 Downloads (Pure)

Abstract

We study the gravitational field of the NUT-like source in the linearized (ghost-free) infinite derivative gravity. Such a source is equivalent to the spinning semi-infinite cosmic string with no tension. In general relativity, the linearized (massless) Taub-NUT solution has a curvature singularity as well as a topological defect corresponding to distributional curvature on one half of the symmetry axis called the Misner string. We find the NUT-charged spacetime in the linearized infinite derivative gravity. We show that it is free from curvature singularities as well as Misner strings. We also discuss an asymptotic limit along the symmetry axis that leads to the spacetime of a spinning cosmic string of infinite length.

Original languageEnglish
Article number124005
Number of pages10
JournalPhysical Review D
Volume101
Issue number12
DOIs
Publication statusPublished - 3-Jun-2020

Keywords

  • PHYSICAL INTERPRETATION
  • SPINNING STRINGS
  • SINGULARITIES

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