Child universe production

S. Ansoldi, E. I. Guendelman

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


There are solutions of Israel junction conditions that describe the detachment of a region of spacetime, a bubble, from what can be called the parent spacetime. In the past these solutions have been mostly considered in the context of inflationary cosmology (the so called baby universes). We will i) briefly review these ideas, ii) show that they can be of interest under more general settings and iii) present solutions where it is possible to create a universe at arbitrarily small energy cost. This could have interesting applications for quantum gravity and particle physics, besides cosmology.

Original languageEnglish
Title of host publicationParticles, Strings, and Cosmology - 13th International Symposium on Particles, Strings, and Cosmology, PASCOS 2007
Number of pages4
StatePublished - 1 Dec 2007
Event13th International Symposium on Particles, Strings and Cosmology, PASCOS 2007 - London, United Kingdom
Duration: 2 Jul 20077 Jul 2007

Publication series

NameAIP Conference Proceedings
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616


Conference13th International Symposium on Particles, Strings and Cosmology, PASCOS 2007
Country/TerritoryUnited Kingdom


  • Baby universes
  • Child universes

ASJC Scopus subject areas

  • General Physics and Astronomy


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