Cosmic Magnetic Fields from Particle Physics

Abstract

I review a number of particle-physics models that lead to the creation of magnetic fields in the early universe and address the complex problem of evolving such primordial magnetic fields into the fields observed today. Implications for future observations of the Cosmic Microwave Background (CMB) are briefly discussed.Comment: 8 pages, 1 figure, talk presented at the 7th International Symposium on Particles, Strings and Cosmology (PASCOS-99) at Granlibakken, Lake Tahoe, 10-16 Dec 1999, to appear in the proceeding