Juliá-Díaz, BrunoGómez Cama, José MaríaLahoz Sanz, Raúl2023-10-172023-10-172023-07https://hdl.handle.net/2445/202928Màster Oficial de Ciència i Tecnologia Quàntiques / Quantum Science and Technology, Facultat de Física, Universitat de Barcelona. Curs: 2022-2023. Tutors: Bruno Julia Diaz, José María Gómez CamaThis master thesis centers on the construction, development and characterization of an experimental setup to demonstrate quantum nonlocality using polarization-entangled photons through a Bell Test. The generation of polarization-entangled photon pairs is accomplished through Type-I Spontaneous Parametric Down-Conversion (SPDC), using a pair of Beta Barium Borate (BBO) crystals. The thesis explores the theoretical foundations of SPDC and describes the assembly and alignment process of the system to obtain entangled photon pairs. A significant violation of Bell’s inequalities is observed with a confidence level around 4-σ. This violation is demonstrated using two different entangled states, providing empirical evidence for the existence of non-local correlations beyond classical theories, supporting the principles of quantum mechanics42 p.application/pdfengcc-by-nc-nd (c) Lahoz, 2023http://creativecommons.org/licenses/by-nc-nd/3.0/es/Teorema de BellNo localitat quànticaTreballs de fi de màsterBell's theoremQuantum nonlocalityMaster's thesisinfo:eu-repo/semantics/masterThesisinfo:eu-repo/semantics/openAccess