Current discontinuities on superconducting cosmic strings |
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Authors: | E Troyan Yu V Vlasov |
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Institution: | 1.Moscow Institute of Physics and Technology,Dolgoprudnyi, Moscow oblast,Russia |
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Abstract: | The propagation of current perturbations on superconducting cosmic strings is considered. The conditions for the existence
of discontinuities similar to shock waves have been found. The formulas relating the string parameters and the discontinuity
propagation speed are derived. The current growth law in a shock wave is deduced. The propagation speeds of shock waves with
arbitrary amplitudes are calculated. The reason why there are no shock waves in the case of time-like currents (in the “electric”
regime) is explained; this is attributable to the shock wave instability with respect to perturbations of the string world
sheet. |
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Keywords: | |
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