D3 \overline{D3} induced geometric inflation

May 25, 2017
22 pages
Published in:
  • JHEP 07 (2017) 057
  • Published: Jul 12, 2017
e-Print:

Citations per year

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Abstract: (Springer)
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.
Note:
  • 22 pages, 7 figures, v2: typos corrected, v3: references added
  • Cosmology of Theories beyond the SM
  • D-branes
  • Supergravity Models
  • inflation: model
  • inflation: chaos
  • membrane model: interaction
  • mass: gravitation
  • gravitino: mass
  • supergravity
  • cosmological constant