Formation of Wakes by Chiral Conducting Cosmic Strings

Topological defects are predicted in many gauge models as solitonic solutions resulting from spontaneous breaking of gauge or global symmetries. Among all these solutions, cosmic strings, and in particular those with conducting properties, have a number of cosmological applications.1 The possible scenarios for structure formation by cosmic strings depend very much in the detail of the model. One relevant mechanism to understand the structure formation by these configurations involves long strings moving with relativistic speed in the normal plane, giving rise to velocity perturbations in their wake.2 The mechanism of forming wakes has been considered by many authors in both Einstein and Scalar-Tensor theories of gravity in the neutral string case 3,5,4,6 and in the conducting string case .7,8,9 Recently, it has been shown that for strings like those proposed by Witten 10 (i.e, current-carrying strings) there appear logarithmic terms and the mechanism of