Color superconductivity, BPS Zk strings and monopole confinement in N = 2 and N = 4 super Yang-Mills theories

AUTOR(ES)

Kneipp, Marco A. C.

FONTE

Brazilian Journal of Physics

DATA DE PUBLICAÇÃO

2004-12

RESUMO

We review some recent developments on BPS string solutions and monopole confinement in the Higgs (or color) superconducting phase of or = 2 and or = 4 super Yang-Mills theories. In particular, the monopole magnetic fluxes are shown to be always integer linear combinations of string fluxes. Moreover, a bound for the threshold length of the string breaking is obtained. When the gauge group SU(N) is broken to Z N, the BPS string tension satisfies the Casimir scaling law. Furthermore, in the SU(3) case the string solutions are such that they allow the formation of a confining system with three monopoles.

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