Symmetry, Integrability and Geometry: Methods and Applications (SIGMA)

SIGMA 6 (2010), 053, 10 pages      arXiv:1006.5611
Contribution to the Proceedings of the Eighth International Conference Symmetry in Nonlinear Mathematical Physics

Cosmological Symmetry Breaking and Generation of Electromagnetic Field

Michiyasu Nagasawa
Department of Information Science, Kanagawa University, Tshuchiya 2946, Hiratsuka-shi, Kanagawa-ken, 259-1293 Japan

Received November 15, 2009, in final form May 14, 2010; Published online June 29, 2010

Cosmological phase transitions accompanied by some kind of symmetry breaking would cause the creation of topological defects and the resulting production of primordial magnetic field. Moreover, such a procedure inevitably affects the cosmic background radiation and it may be observed today. Motivated by the existence of stabilized embedded defects in the standard model of elementary interactions, we discuss their application to the cosmological electromagnetic field generation.

Key words: cosmology; defect; pion string; magnetic field.

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