147 citations · 658 across the 13 of their papers we have counts for
6 papers · 1 filter
Non-extremal instantons and wormholes in string theory
E. Bergshoeff, A. Collinucci, U. Gran +2
We construct the most general non-extremal spherically symmetric instanton solution of a gravity-dilaton-axion system with symmetry, for arbitrary euclidean spacetime dim…
The map between conformal hypercomplex/hyper-Kaehler and quaternionic(-Kaehler) geometry
Eric Bergshoeff, Sorin Cucu, Tim de Wit +3
We review the general properties of target spaces of hypermultiplets, which are quaternionic-like manifolds, and discuss the relations between these manifolds and their symmetry ge…
Non-extremal D-instantons
E. Bergshoeff, A. Collinucci, U. Gran +2
We construct the most general non-extremal deformation of the D-instanton solution with maximal rotational symmetry. The general non-supersymmetric solution carries electric charge…
Fivebrane Instanton Corrections to the Universal Hypermultiplet
Marijn Davidse, Ulrich Theis, Stefan Vandoren
We analyze the Neveu-Schwarz fivebrane instanton in type IIA string theory compactifications on rigid Calabi-Yau threefolds, in the low-energy supergravity approximation. It there…
N=2 supergravity in five dimensions revisited
Eric Bergshoeff, Sorin Cucu, Tim de Wit +3
We construct matter-coupled N=2 supergravity in five dimensions, using the superconformal approach. For the matter sector we take an arbitrary number of vector-, tensor- and hyper-…
Quantum Corrections to the Universal Hypermultiplet and Superspace
Lilia Anguelova, Martin Rocek, Stefan Vandoren
We investigate quantum corrections to the effective action of the universal hypermultiplet in the language of projective superspace. We rederive the recently found one-loop correct…