T-Duality and the Worldvolume Solitons of Five-Branes and KK-Monopoles
Abstract
We show that the fluxes of the various six-dimensional `gauge' theories are associated to bound states below threshold of D-branes with the NS-5-branes and KK-monopoles which preserve half of the supersymmetry of the bulk. We then find the supergravity solutions that correspond to these bound states. In addition, we investigate the sectors of these theories that preserve one quarter of supersymmetry using the worldvolume solitons of IIA and IIB NS-5-branes and KK-monopoles. This leads to a generalization a supergravity solution which has the interpretation of two intersecting NS-5-branes at a 3-brane and to the construction of some of the worldvolume solitons of IIA and M-theory KK-monopoles. Furthermore, using the IIA/IIB T-duality of the bulk theories, we give the T-duality transformations of the worldvolume solitons of NS-5-branes and KK-monopoles and we find the the worldvolume 0-brane, self-dual string and 2-brane solitons of the NS-5-branes appear in the same T-duality chain.Keywords
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