منابع مشابه
Hybrid Superstrings in NS-NS Plane Waves
By using the hybrid formalism, superstrings in four-dimensional NS-NS plane waves are studied in a manifest supersymmetric manner. This description of the superstring is obtained by a field redefinition of the RNS worldsheet fields and defined as a topological N = 4 string theory. The Hilbert space consists of two types of representations describing short and long strings. We study the physical...
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متن کاملDilatonic Parallelizable NS-NS Backgrounds
We complete the classification of parallelizable NS-NS backgrounds in type II super-gravity by adding the dilatonic case to the result of Figueroa-O'Farrill on the non-dilatonic case. We also study the supersymmetry of these parallelizable backgrounds. It is shown that all the dilatonic parallelizable backgrounds have sixteen supersymmetries. The parallelizable pp-wave backgrounds have been rec...
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The standard notion of NS-NS 3-form flux is lifted to Hitchin’s generalized geometry. This generalized flux is given in terms of an integral of a modified Nijenhuis operator over a generalized 3-cycle. Explicitly evaluating the generalized flux in a number of familiar examples, we show that it can compute three-form flux, geometric flux and non-geometric Q-flux. Finally, a generalized connectio...
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ژورنال
عنوان ژورنال: Extended Outlooks: The Iowa Review Collection of Contemporary Writing by Women
سال: 1981
ISSN: 0021-065X,2330-0361
DOI: 10.17077/0021-065x.2746