TH String Theory Seminar

Open/closed string duality for topological gravity with matter

by Albrecht Klemm (Univ. Wisconsin)

→ Europe/Zurich
TH Auditorium (CERN)

TH Auditorium

CERN

Description
We calculate the non-perturbative FZZT amplitude for topological gravity coupled to (p,1) matter in a double scaling limit of the two-matrix model. The generalized Kontsevitch model arises in this limit and the system exhibits a very explicit realisation of an open/closed transition. In a similar way as in the (2,1) model, unphysical branches of the moduli space disappear by the Stokes phenomenon.