Type IIB moduli stabilization, inflation and waterfall fields

Ignatios Antoniadis (1) , Osmin Lacombe (1) , George K Leontaris (2)

1 LPTHE - Laboratoire de Physique Théorique et Hautes Energies
2 Department of Physics, University of Ioannina

In this paper, we present a string realization of the hybrid in°ationary scenario within type IIB e®ective string theory constructions and a geometric con¯guration of intersecting D7 branes. A metastable de Sitter minimum is ensured by perturbative logarithmic corrections and D-term contributions from abelian factors associated with the D7 branes. The in°aton is identi¯ed with the internal volume modulus whereas possible waterfall ¯elds correspond to excitations of open strings attached to the magnetized D7 branes. By incorporating contributions of these ¯elds in the scalar potential, in°ation stops and the metastable vacuum settles to a minimum with the observed tunable value of the cosmological constant.

Mots clés: D-branes superstring e®ective models superstring vacua in°ation; D-branes; superstring e®ective models; superstring vacua; in°ation

Domaines: Physique [physics]

Ignatios Antoniadis, Osmin Lacombe, George K Leontaris. Type IIB moduli stabilization, inflation and waterfall fields. ICNFP2021, Aug 2021, Kolymbari, Greece. ⟨10.1142/s0217751x22440018⟩. ⟨hal-03924825⟩