2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/196844We consider a quantized scalar field in a two-dimensional Minkowski spacetime with a moving mirror and propose a definition of moving-mirror entropy associated with temporarily inaccessible information about the future.Latex, 7 pagesGeneral Relativity and Quantum CosmologyHigh Energy Physics - Theorytext