2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/225530We construct the effective potential for the ghost condensate <f^{abi}\bar{c}^a c^b> in the maximal Abelian gauge. This condensate is an order parameter for a global continuous symmetry, which is spontaneously broken since a nonvanishing value of <f^{abi}\bar{c}^a c^b> lowers the vacuum energy. The associated Goldstone mode turns out to be unphysical.16 pages. v2: version accepted for publication in JHEPHigh Energy Physics - Theorytext