International Conference on Quantum Physics of Nature (QuPoN 2015) Mitschnitt einer Veranstaltung der Fakultät für Physik am Montag, dem 18. Mai 2015 im Großen Festsaal der Universität Wien Teil 5. Philippe Grangier: "Contexts, systems and modalities: a new ontology for quantum mechanics" Schnitt: Daniel Winkler Abstract: We propose a way to make usual quantum mechanics fully compatible with physical realism, defined as the statement that the goal of physics is to study entities of the natural world, existing independently from any particular observer's perception, and obeying universal and intelligible rules. Rather than elaborating on the quantum formalism itself, we propose to modify the quantum ontology, by requiring that physical properties are attributed jointly to the system, and to the context in which it is embedded. In combination with a quantization principle, this non-classical definition of physical reality sheds new light on counter-intuitive features of quantum mechanics such as the origin of probabilities, non-locality, and the quantum-classical boundary. Philippe Grangier ist Professor für Quantenoptik am Institut d'Optique in Palaiseau. INHALT ====== Kapitel Titel Position --------------------------------------------------------------------- 1. Vorspann 00:00:00 2. Zeilinger's attitude towards QM. Recent articles 00:00:12 3. Classical physics: systems and properties 00:06:37 4. Example: polarized photons 00:18:29 5. Bell's inequalities 00:24:06 6. Reconstructing the formalism of quantum mechanics 00:32:44

Quantenphysik, Realismus

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