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11 papers · 2 filters
Generalized Kahler geometry and gerbes
C. M. Hull, U. Lindström, M. Roček +2
We introduce and study the notion of a biholomorphic gerbe with connection. The biholomorphic gerbe provides a natural geometrical framework for generalized Kahler geometry in a ma…
Finite size giant magnons in the SU(2) x SU(2) sector of AdS_4 x CP^3
Tomasz Lukowski, Olof Ohlsson Sax
We use the algebraic curve and Luscher's mu-term to calculate the leading order finite size corrections to the dispersion relation of giant magnons in the SU(2) x SU(2) sector of A…
Chain inflation and the imprint of fundamental physics in the CMBR
Diego Chialva, Ulf H. Danielsson
In this work we investigate characteristic modifications of the spectrum of cosmological perturbations and the spectral index due to chain inflation. We find two types of effects.…
Topological branes, p-algebras and generalized Nahm equations
Giulio Bonelli, Alessandro Tanzini, Maxim Zabzine
Inspired by the recent advances in multiple M2-brane theory, we consider the generalizations of Nahm equations for arbitrary p-algebras. We construct the topological p-algebra quan…
Nonabelian Generalized Gauge Multiplets
Ulf Lindstrom, Martin Rocek, Itai Ryb +2
We give the nonabelian extension of the newly discovered N = (2, 2) two-dimensional vector multiplets. These can be used to gauge symmetries of sigma models on generalized Kahler g…
Finite-size corrections in the SU(2) x SU(2) sector of type IIA string theory on AdS_4 x CP^3
Davide Astolfi, Valentina Giangreco M. Puletti, Gianluca Grignani +2
We consider finite-size corrections in the SU(2) x SU(2) sector of type IIA string theory on AdS_4 x CP^3, which is the string dual of the recently constructed N=6 superconformal C…