2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/119071We explore the method of entanglement entropy applied to 2d black holes. We introduce a solvable model of a real scalar field with finite volume and lattice spacing in terms of $N$ coupled mechanical oscillators and compute its entanglement entropy in many cases. The large $N$ limit of this scheme, with finite lattice spacing, should reproduce the Bekenstein-Hawking formula for black hole entropy.22 pages, no figures, LaTeXHigh Energy Physics - TheoryEntanglement entropy and 2d black holestext