Central Extensions of Supersymmetry in Four and Three Dimensions
High Energy Physics - Theory
2010-11-19 v2
Abstract
We consider the maximal central extension of the supertranslation algebra in d=4 and 3, which includes tensor central charges associated to topological defects such as domain walls (membranes) and strings. We show that for all N-extended superalgebras these charges are related to nontrivial configurations on the scalar moduli space. For N=2 theories obtained from compactification on Calabi-Yau threefolds, we give an explicit realization of the moduli-dependent charges in terms of wrapped branes.
Keywords
Cite
@article{arxiv.hep-th/9711116,
title = {Central Extensions of Supersymmetry in Four and Three Dimensions},
author = {S. Ferrara and M. Porrati},
journal= {arXiv preprint arXiv:hep-th/9711116},
year = {2010}
}
Comments
11 pages. Sections 2 and 4 expanded, misprints corrected, references added