Non-Abelian Global Strings at Chiral Phase Transition
arXiv:0708.4091 · doi:10.1016/j.physletb.2007.10.055
Abstract
We construct non-Abelian global string solutions in the U(N)_L x U(N)_R linear sigma model. These strings are the most fundamental objects which are expected to form during the chiral phase transitions, because the Abelian eta' string is marginally decomposed into N of them. We point out Nambu-Goldstone modes of CP^{N-1} for breaking of U(N)_V arise around a non-Abelian vortex.
10 pages, 2 figures
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