54 citations · 146 across the 4 of their papers we have counts for
4 papers
Exotic instanton counting and heterotic/type I' duality
Marco Billo', Livia Ferro, Marialuisa Frau +3
We compute the partition function for the exotic instanton system corresponding to D-instantons on D7 branes in Type I' theory. We exploit the BRST structure of the moduli action a…
Non-perturbative effective interactions from fluxes
M. Billo', L. Ferro, M. Frau +3
Motivated by possible implications on the problem of moduli stabilization and other phenomenological aspects, we study D-brane instanton effects in flux compactifications. We focus…
Flux interactions on D-branes and instantons
Marco Billo', Livia Ferro, Marialuisa Frau +3
We provide a direct world-sheet derivation of the couplings of NS-NS and R-R fluxes to various types of D-branes (including instantonic ones) by evaluating disk amplitudes among tw…
Universal behaviour of interfaces in 2d and dimensional reduction of Nambu-Goto strings
M. Billo, M. Caselle, L. Ferro
We propose a simple effective model for the description of interfaces in 2d statistical models, based on the first-order treatment of an action corresponding to the length of the i…