2005/03/31 by S.-H. Henry Tye, S. -H. Henry Tye, Ira Wasserman +1 · 6 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Brane #Brane cosmology #Cosmic string #Cosmology and Gravitation Theories #Galaxies: Formation, Evolution, Phenomena #Geometry #Higgs boson #Particle physics #Physics #Scaling #String (physics) #Superstring theory #Supersymmetry #Theoretical physics #astro-ph #gr-qc #hep-ph #hep-th
paper · pdf · doi:10.1103/physrevd.71.103508
published as Phys.Rev.D71:103508,2005; Erratum-ibid.D71:129906,2005 · v2: 30 pages, 6 figures, references added to match version submitted to Phys. Rev. D v3: typos corrected on pp. 7-8
openalex publication_date 2005/05/13 · arxiv created 2005/06/17 · arxiv updated 2014/10/13 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/04
Brane inflation in superstring theory ends when branes collide, initiating the hot big bang. Cosmic superstrings are produced during the brane collision. The cosmic superstrings produced in a D3-brane-antibrane inflationary scenario have a spectrum: (p,q) bound states of p fundamental (F) strings and q D-strings, where p and q are coprime. By extending the velocity-dependent one-scale network evolution equations for Abelian Higgs cosmic strings to allow a spectrum of string tensions, we construct a coupled (infinite) set of equations for strings that interact through binding and self-interactions. We apply this model to a network of (p,q) superstrings. Our numerical solutions show that (p,q) networks rapidly approach a stable scaling solution. We also extract the relative densities of each string type from our solutions. Typically, only a small number of the lowest tension states are populated substantially once scaling is reached. The model we study also has an interesting new feature: the energy released in (p,q) string binding is by itself adequate to allow the network to reach scaling. This result suggests that the scaling solution is robust. To demonstrate that this result is not trivial, we show that choosing a different form for string interactions can lead to network frustration.