2009/06/15 by Edi Halyo, Halyo, Edi · 1 citation
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #FOS: Physical sciences #Galaxies: Formation, Evolution, Phenomena #High Energy Physics - Theory (hep-th) #hep-th
paper · pdf · doi:10.48550/arxiv.0906.2587
17 pages in phyzzx.tex, numerous minor changes and corrections, 5 references added; v3 stability argument clarified, minor changes
openalex publication_date 2009/06/15 · arxiv created 2009/08/18 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We describe cosmic F--term strings with exponentially small tension which are D3 branes wrapped on deformed A3 singularities. We show that brane instanton effects which can be calculated after a geometric transition give rise to an exponentially small volume for the node on which the D3 branes wrap leading to a string with small tension. We generalize our description to the case of non--Abelian cosmic strings and argue that these strings are stable against monopole--anti monopole pair creation.