Central extensions of supersymmetry in four and three dimensions

Sergio Ferrara, Massimo Porrati

    Research output: Contribution to journalArticlepeer-review


    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 super-algebras 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.

    Original languageEnglish (US)
    Pages (from-to)255-260
    Number of pages6
    JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
    Issue number3-4
    StatePublished - Mar 26 1998

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics


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