2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/203186We show that a simple gravitational theory can provide a holographically dual description of a superconductor. There is a critical temperature, below which a charged condensate forms via a second order phase transition and the (DC) conductivity becomes infinite. The frequency dependent conductivity develops a gap determined by the condensate. We find evidence that the condensate consists of pairs of quasiparticles.1+10 pages, 4 figures, LaTeXHigh Energy Physics - TheorySuperconductivityGeneral Relativity and Quantum Cosmologytext