2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/186514We consider gauge theories with scalar matter with and without supersymmetry at nonzero chemical potential. It is argued that a chemical potential plays a role similar to the FI term. We analyze theory at weak coupling regime at large chemical potential and argue that it supports nonabelian non-BPS strings. Worldsheet theory on the nonabelian string in a dense matter is briefly discussed.14 pagesHigh Energy Physics - TheoryHigh Energy Physics - Phenomenologytext