643 citations · 8.2k across the 91 of their papers we have counts for
3 papers · 1 filter
Counting BPS states on the Enriques Calabi-Yau
Albrecht Klemm, Marcos Marino
We study topological string amplitudes for the FHSV model using various techniques. This model has a type II realization involving a Calabi-Yau threefold with Enriques fibres, whic…
Matrix model eigenvalue integrals and twist fields in the su(2)-WZW model
Matthias R. Gaberdiel, Albrecht O. Klemm, Ingo Runkel
We propose a formula for the eigenvalue integral of the hermitian one matrix model with infinite well potential in terms of dressed twist fields of the su(2) level one WZW model. T…
Open/Closed String Duality for Topological Gravity with Matter
Akikazu Hashimoto, Min-xin Huang, Albrecht Klemm +1
The exact FZZT brane partition function for topological gravity with matter is computed using the dual two-matrix model. We show how the effective theory of open strings on a stack…