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Paper   IPM / Physic / 9007
School of Physics
  Title:   Dynamics of D3-D7 Brane Inflation in Throats
  Author(s): 
1.  F . Chen
2.  H. Firouzjahi
  Status:   Published
  Journal: JHEP
  Vol.:  11
  Year:  2008
  Pages:   017
  Supported by:  IPM
  Abstract:
Dynamics of D3-branes in models of warped D3-D7 inflationary set up is studied where perturbative α′ correction to the Kähler potential and the nonperturbative corrections to the superpotential are included. It is shown that a dS minimum can be obtained without introducing anti-branes. Some specific configurations of D7-branes embedding were studied. After stabilizing the angular directions, it is shown that the resulting D3-D7 potential of the radial position of the D3-brane is too steep to allow slow-roll inflation. Depending on D7-branes embedding and the stabilized angular directions, the mobile D3-brane can move either towards the tip of the throat or towards the D7-branes.


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