Cosmic D-strings as axionic D-term strings

Jose J. Blanco-Pillado, Gia Dvali, Michele Redi

    Research output: Contribution to journalArticle

    Abstract

    In this work we derive nonsingular BPS string solutions from an action that captures the essential features of a D-brane-anti-D-brane system compactified to four dimensions. The model we consider is a supersymmetric Abelian Higgs model with a D-term potential coupled to an axion-dilaton multiplet. The strings in question are axionic D-term strings which we identify with the D-strings of type II string theory. In this picture the Higgs field represents the open string tachyon of the D-D̄ pair and the axion is dual to a Ramond-Ramond form. The crucial term allowing the existence of nonsingular BPS strings is the Fayet-Iliopoulos term, which is related to the tensions of the D-string and of the parent branes. Despite the presence of the axion, the strings are BPS and carry finite energy, due to the fact that the space gets very slowly decompactified away from the core, screening the long range axion field (or equivalently the theory approaches an infinitely weak 4D coupling). Within our 4D effective action we also identify another class of BPS string solutions (s-strings) which have no ten-dimensional analog, and can only exist after compactification.

    Original languageEnglish (US)
    Article number105002
    JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
    Volume72
    Issue number10
    DOIs
    StatePublished - Nov 15 2005

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    strings
    Strings
    Term
    D-branes
    Higgs
    Dilaton
    Effective Action
    Weak Coupling
    String Theory
    Branes
    Compactification
    string theory
    Screening
    screening
    fine structure
    analogs
    Analogue
    Energy
    Model
    Range of data

    ASJC Scopus subject areas

    • Physics and Astronomy(all)
    • Nuclear and High Energy Physics
    • Mathematical Physics

    Cite this

    Cosmic D-strings as axionic D-term strings. / Blanco-Pillado, Jose J.; Dvali, Gia; Redi, Michele.

    In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 72, No. 10, 105002, 15.11.2005.

    Research output: Contribution to journalArticle

    Blanco-Pillado, Jose J. ; Dvali, Gia ; Redi, Michele. / Cosmic D-strings as axionic D-term strings. In: Physical Review D - Particles, Fields, Gravitation and Cosmology. 2005 ; Vol. 72, No. 10.
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