Titlebook: Quantum [Un]Speakables II; Half a Century of Be Reinhold Bertlmann,Anton Zeilinger Book 2017 Springer International Publishing Switzerland

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Bell’s Universe: A Personal Recollectionantum physics. Finally, I describe the huge influence Bell had on my own work, in particular on entanglement and Bell inequalities in particle physics and their experimental verification, and on mathematical physics, where some geometric aspects of the quantum states are illustrated.

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Bell Inequalities with Retarded Settingsthat reproduces Quantum Theory when the retarded and actual settings are equal, but violates it when they are not. We discuss using humans to choose the settings in this type of experiment and the implications of a violation of Quantum Theory (in agreement with the retarded Bell inequalities) in this context.

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Bell’s Universe: A Personal Recollections, and his joint work with Mary Bell. Mary’s work in accelerator physics is also summarized. I recall our quantum debates, mention some personal reminiscences, and give my personal view on Bell’s fundamental work on quantum theory, in particular, on the concept of contextuality and nonlocality of qu

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On the Quantum Measurement Problemon of the Copenhagen interpretation. I assume that (i) the quantum state is a representation of knowledge of a (real or hypothetical) observer relative to her experimental capabilities; (ii) measurements have definite outcomes in the sense that only one outcome occurs; (iii) quantum theory is univer

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Bell’s Theorem Tells Us , What Quantum Mechanics ,, but What Quantum Mechanics , implications of Bell’s theorem. When such phrases are treated seriously, that is it is claimed that Bell’s theorem reveals non-locality as an inherent trait of the quantum description of the micro-world, this leads to logical contradictions, which will be discussed here. In fact, Bell’s theorem, un

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The Unspeakable Why are unveiling a surprisingly simple answer. Here we show that two characteristic limits of quantum theory, the maximum violations of Clauser-Horne-Shimony-Holt and Klyachko-Can-Binicio?lu-Shumovsky inequalities, are enforced by a simple principle. The effectiveness of this principle suggests that n

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A Quantum Mechanical Bound for CHSH-Type Bell Inequalitiesthem makes a measurement, using an observable randomly chosen out of several possible ones, leading to one of two possible outcomes. After collecting a sufficient amount of data one calculates the value of a so-called Bell expression. An important question in this context is whether the result is co