Traversable wormholes and non-singular black holes from the vacuum of quadratic gravity

Francis Duplessis, Damien Easson

Research output: Contribution to journalArticle

17 Scopus citations

Abstract

We present new traversable wormhole and nonsingular black hole solutions in pure, scale-free R2 gravity. These exotic solutions require no null energy condition violating or "exotic" matter and are supported only by the vacuum of the theory. It is well known that f(R) theories of gravity may be recast as dual theories in the Einstein frame. The solutions we present are found when the conformal transformation required to move to the dual frame is singular. For quadratic R2 gravity, the required conformal factor is identically zero for spacetimes with R=0. Solutions in this case are argued to arise in the strong coupling limit of general relativity.

Original languageEnglish (US)
Article number043516
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume92
Issue number4
DOIs
StatePublished - Aug 24 2015

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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