D3 ¯ induced geometric inflation

Renata Kallosh, Andrei Linde, Diederik Roest, Yusuke Yamada*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

40 Citations (Scopus)

Abstract

Effective supergravity inflationary models induced by anti-D3 brane interaction with the moduli fields in the bulk geometry have a geometric description. The Kähler function carries the complete geometric information on the theory. The non-vanishing bisectional curvature plays an important role in the construction. The new geometric formalism, with the nilpotent superfield representing the anti-D3 brane, allows a powerful generalization of the existing inflationary models based on supergravity. They can easily incorporate arbitrary values of the Hubble parameter, cosmological constant and gravitino mass. We illustrate it by providing generalized versions of polynomial chaotic inflation, T- and E-models of α-attractor type, disk merger. We also describe a multi-stage cosmological attractor regime, which we call cascade inflation.

Original languageEnglish
Article number57
JournalJournal of High Energy Physics
Volume2017
Issue number7
DOIs
Publication statusPublished - 2017 Jul 1
Externally publishedYes

Keywords

  • Cosmology of Theories beyond the SM
  • D-branes
  • Supergravity Models

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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