New potentials for string axion inflation

Tatsuo Kobayashi, Akane Oikawa, Hajime Otsuka

    Research output: Contribution to journalArticlepeer-review

    29 Citations (Scopus)


    We propose a new type of axion inflation with complex structure moduli in the framework of type IIB superstring theory compactified on the Calabi-Yau manifold. The inflaton is identified as the axion for the complex structure moduli whose potential is originating from instantonic corrections appearing through the period vector of the mirror Calabi-Yau manifold. The axionic shift symmetry is broken down to the discrete one by the inclusion of the instantonic correction and certain three-form fluxes. Our proposed inflation scenario is compatible with Kähler moduli stabilization. We also study a typical reheating temperature in the case of complex structure moduli inflation.

    Original languageEnglish
    Article number083508
    JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
    Issue number8
    Publication statusPublished - 2016 Apr 13

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics


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