Superconducting cosmic string loops emit vector radiation whose strength is fitted in this paper; including this channel suppresses the predicted gravitational wave background for strong coupling and can make the spectrum compatible with NANOGrav for large currents.
Could Electromagnetic Corrections Solve The Vorton Excess Problem ?
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abstract
The modifications of circular cosmic string loop dynamics due to the electromagnetic self-interaction are calculated and shown to reduce the available phase space for reaching classical vorton states, thereby decreasing their remnant abundance. Use is made of the duality between master-function and Lagrangian formalisms on an explicit model.
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Stochastic Gravitational Wave Background from Chiral Superconducting Cosmic Strings
Superconducting cosmic string loops emit vector radiation whose strength is fitted in this paper; including this channel suppresses the predicted gravitational wave background for strong coupling and can make the spectrum compatible with NANOGrav for large currents.