2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/203864We show that electrically and magnetically frustrated Josephson junction arrays (JJAs) realize topological order with a non-trivial ground state degeneracy on manifolds with non-trivial topology. The low-energy theory has the same gauge dynamics of the unfrustrated JJAs but for different, "fractional" degrees of freedom, a principle reminescent of Jain's composite electrons in the fractional quantum Hall effect.5 pages; to appear in EPLStrongly Correlated ElectronsHigh Energy Physics - Theorytext