131 citations · 717 across the 34 of their papers we have counts for
5 papers · 1 filter
D-instantons and Dualities in String Theory
Christoffer Petersson
This introductory part of the author's PhD compilation thesis discusses non-perturbative aspects of string theory, with focus on D-instantons which play key roles in the context of…
Field Theory Interpretation of N=2 Stringy Instantons
Riccardo Argurio, Davide Forcella, Alberto Mariotti +2
We consider stringy instanton contributions to the prepotential of low-energy N=2 theories engineered by D-brane set ups at orbifold and orientifold singularities. We show that suc…
D-instanton and polyinstanton effects from type I' D0-brane loops
Christoffer Petersson, Pablo Soler, Angel M. Uranga
We study non-perturbative D(-1)-instanton corrections to quartic gauge and curvature couplings in 8d type IIB orientifolds, in terms of a one-loop computation of BPS D0-branes in T…
Superpotentials From Stringy Instantons Without Orientifolds
Christoffer Petersson
In this paper we show that it is possible to derive non-perturbative superpotential terms from a stringy instanton without introducing orientifold planes. The instanton is realized…
Massless fermionic bound states and the gauge/gravity correspondence
Riccardo Argurio, Gabriele Ferretti, Christoffer Petersson
We study the equations of motion of fermions in type IIB supergravity in the context of the gauge/gravity correspondence. The main motivation is the search for normalizable fermion…