2004/12/31 by Tomohiro Matsuda · 1 citation
Mathematics · Physics and Astronomy · #Action (physics) #Black Holes and Theoretical Physics #Brane #Brane cosmology #Computer science #Cosmic string #Cosmology and Gravitation Theories #Extra dimensions #Galaxies: Formation, Evolution, Phenomena #Geometry #Inflation (cosmology) #Mathematics #Moduli #Moduli space #Physics #Quantum mechanics #Space (punctuation) #String (physics) #Theoretical physics #astro-ph #hep-ph #hep-th
paper · pdf · doi:10.1088/1126-6708/2005/05/015
published as JHEP0505:015,2005 · 27pages, 6 figures, latex2e, accepted for publication in JHEP
arxiv created 2005/04/24 · openalex publication_date 2005/05/06 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We investigate the evolution of the networks of the cosmic strings in angled brane inflation. We show how they can be distinguished from the conventional ones. The cosmic strings in angled inflation are the daughter Dp-2 branes that are extended between the mother Dp branes. In the effective action, the strings should have a moduli, since the endpoints of the Dp-2 branes can move freely on the Dp branes. Then naturally the position of the Dp-2 branes, which corresponds to the moduli of the (1+1)-dimensional effective action, can vary along the cosmic strings. The variation of the moduli results in the peculiar (1+1)-dimensional kink configurations. The kinks are the monopoles on the strings. Therefore, the cosmic strings in angled inflation become necklaces. The loops of the necklaces can shrink to produce stable winding states, which look like coils. We show why the cosmological implications of the brane necklaces are important. We point out that the cosmic strings in generic models of brane inflation should become necklaces, depending on the structure of the compactified space and the effective potential of the model.