The effects of inhomogeneities on the cosmology of type IIB conifold transitions

Eran Palti, Paul Saffin, Jon Urrestilla

Research output: Contribution to journalReview articlepeer-review

4 Scopus citations


In this paper we examine the evolution of the effective field theory describing a conifold transition in type IIB string theory. Previous studies have considered such dynamics starting from the cosmological approximation of homogeneous fields , here we include the effects of inhomogeneities by using a real-time lattice field theory simulation. By including spatial variations we are able to simulate the effect of currents and the gauge fields which they source. We identify two different regimes where the inhomogeneities have opposite effects, one where they aid the system to complete the conifold transition and another where they hinder it. The existence of quantized fluxes in related systems has lead to the speculation that (unstable) string solutions could exist, using our simulations we give strong evidence that these string-like defects do not form.

Original languageEnglish
Pages (from-to)777-790
Number of pages14
JournalJournal of High Energy Physics
Issue number3
StatePublished - 1 Mar 2006
Externally publishedYes


  • Cosmology of Theories beyond the SM


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