2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/113243In this paper, an unextendible product basis and exact-entanglement bases of three qubit is given, and the properties of entanglement for exact-entanglement bases are also discussed. In addition, the bound entangled mixed state is obtained from the exact-entanglement bases.9 pagesQuantum PhysicsThe complete basis with an unextendible product basis and exact-entanglement bases (CBUPB) of three qubittext