标题： AQFT中的测量方案，上下文性和维格纳的朋友思想实验 显示英文标题

标题： Measurement Schemes in AQFT, Contextuality and the Wigner's Friend Gedankenexperiment

摘要： 测量在历史上一直是量子理论一致描述的一个问题，无论是在非相对论量子力学中还是在量子场论中。 借鉴近年来对代数量子场论中测量描述的兴趣激增，决定本论文将专注于弥合K. Hepp在70年代提出的测量描述（考虑准局部代数中状态的退相干）与C. Fewster和R. Verch最近提出的普遍协变测量方案新框架之间的差距。 我们还将考虑另一个近期结果，即Frauchinger-Renner思想实验，该实验受到Hepp关于基于退相干的测量文章的启发，得出了关于包含理性代理系统的量子描述一致性的不可能结果，我们将试图为这一结果的解释提供一个闭合。 在这样做时，我们自然地进入了对测量装置的上下文性质的研究。 显示英文摘要

摘要： Measurements have historically presented a problem for the consistent description of quantum theories, be it in non-relativistic quantum mechanics or in quantum field theory. Drawing on a recent surge of interest in the description of measurements in Algebraic Quantum Field theory, it was decided that this dissertation would be focused on trying to close the gap between the description of measurements proposed by K. Hepp in the 70's, considering decoherence of states in quasilocal algebras and the new framework of generally covariant measurement schemes proposed recently by C. Fewster and R. Verch. Another recent result that we shall also consider is the Frauchinger-Renner Gedankenexperiment, that has taken inspiration on Hepp's article about decoherence based measurements to arrive at a no-go result about the consistency of quantum descriptions of systems containing rational agents, we shall seek to provide a closure for the interpretation of this result. In doing so we naturally arrive at the study of the contextual properties of measurement setups.