Journeys through antigravity?

John Joseph Carrasco, Wissam Chemissany, Renata Kallosh

Research output: Contribution to journalArticlepeer-review

24 Scopus citations


A possibility of journeys through antigravity has recently been proposed, with the suggestion that Weyl-invariant extension of scalars coupled to Einstein gravity allows for an unambiguous classical evolution through cosmological singularities in anisotropic spacetimes. We compute the Weyl invariant curvature squared and find that it blows up for the proposed anisotropic solution both at the Big Crunch as well as at the Big Bang. Therefore the cosmological singularities are not resolved by uplifting Einstein theory to a Weyl invariant model.

Original languageEnglish (US)
Article number130
JournalJournal of High Energy Physics
Issue number1
StatePublished - Jan 2014


  • Classical Theories of Gravity
  • Spacetime Singularities

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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