title: Kochen-Specker theorem for a single qubit using positive operator-valued measures.
abstract: A proof of the Kochen-Specker theorem for a single two-level system is presented. It employs five eight-element positive operator-valued measures and a simple algebraic reasoning based on the geometry of the dodecahedron.
authors.affiliation: Departamento de Física Aplicada II, Universidad de Sevilla, 41012 Sevilla, Spain. adan@us.es
authors.forename: Adán
authors.initials: A
authors.lastname: Cabello