Currents in Cosmic Strings and Associated Cosmology

          @misc{ scivideos_PIRSA:11110112,
            doi = {10.48660/11110112},
            url = {https://pirsa.org/11110112},
            author = {Peter, Patrick},
            keywords = {Cosmology},
            language = {en},
            title = {Currents in Cosmic Strings and Associated Cosmology},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2011},
            month = {nov},
            note = {PIRSA:11110112 see, \url{https://scivideos.org/pirsa/11110112}}
          }
          

Abstract

Cosmic strings are a generic prediction of Grand Unified Theories that can leave a sufficient imprint in the Cosmic Microwave Background anisotropies to open an observational window into an otherwise unreachable high energy domain. Being formed as topological defects of a Higgs field, they are also naturally coupled to various other fields, that can lead to superconducting-like currents, hence radically changing their structure and properties. After having summarized the standard string network behaviour and its cosmological effects, I will concentrate on the current-carrying properties and show how those can modify drastically the overall picture. In particular, I will exhibit the many current case, including the special non abelian situation that requires more care to be fully understood.