Bernal Serrano, AntonioGarcı́a-Arisco Vı́lchez, Sergio2022-04-252022-04-252021-06-18https://hdl.handle.net/2445/185136Treballs Finals de Grau de Matemàtiques, Facultat de Matemàtiques, Universitat de Barcelona, Any: 2021, Director: Antonio Bernal Serrano[en] This paper consists of an introduction to quantum theory for finite dimensional systems, mostly 1/2 spin systems. Subsequently, the article “Quantum theory cannot consistently describe the use of itself” is analized, including the result that the authors arrive at: quantum theory is not consistent for complex macroscopic systems. This has generated a lot of controversy, which is why various articles have arisen both in favor and against it, some of them include [3, 4] defending it or [5, 6] criticizing it that I have read in order to understand better the initial article and its arguments. In addition to this, an observation is also made about the proof in [2].25 p.application/pdfspacc-by-nc-nd (c) Sergio Garcı́a-Arisco Vı́lchez, 2021http://creativecommons.org/licenses/by-nc-nd/3.0/es/Teoria quànticaTreballs de fi de grauFísicaQuantum theoryBachelor's thesesPhysicsinfo:eu-repo/semantics/bachelorThesisinfo:eu-repo/semantics/openAccess