2011/03/03 by Ernst Trojan, Trojan, Ernst, George V. Vlasov +1
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #FOS: Physical sciences #High Energy Astrophysical Phenomena (astro-ph.HE) #High Energy Physics - Phenomenology (hep-ph) #High Energy Physics - Theory (hep-th) #Ionosphere and magnetosphere dynamics #Solar and Space Plasma Dynamics #astro-ph.HE #hep-ph #hep-th
paper · pdf · doi:10.48550/arxiv.1103.0673
16 pages, 7 figures. extract from Zh.Eksp.Teor.Fiz. 140, 66 (2011)
openalex publication_date 2011/03/03 · arxiv created 2012/05/22 · arxiv updated 2016/01/28 · openalex created_date 2022/08/31 · openalex updated_date 2026/07/28
Superconducting cosmic string may admit shock-like discontinuities of the current when the latter is spacelike ("magnetic" regime), while no shock at timelike current ("electric" regime) was discovered in numerical simulations. We find that the necessary and enough conditions for existence of stable shocks and show that the shock can be unstable in the presence of infinitesimal extrinsic perturbations of the string worldsheet. The shocks in the "magnetic" regime are not vulnerable to this instability but the shocks in the "electric" regime do not survive.