CoQuS II Kick-Off Workshop, also honouring Reinhold Bertlmann's 65th Birthday Mitschnitt einer Veranstaltung von Universität Wien, Technischer Universität Wien und Fonds zur Förderung der wissenschaftlichen Forschung am Freitag, dem 1. Oktober 2010 im Christian-Doppler-Hörsaal der Fakultät für Physik der Universität Wien Teil 20. Beatrix Hiesmayr (Slowakische Akademie der Wissenschaften): Bertlmann's Socks in Particle Physics and Relativistic Entanglement Entanglement and its manifestations can also be investigated for systems not consisting of ordinary matter or light, a research field Reinhold Bertlmann pioneered in and which is now part of the research program of the KLOE experiment at the accelerator facility DAPHNE (Italy). This talk discusses how Bertlmann's Socks behave in an Einstein-Podolsky-Rosen scenario for meson-antimeson systems which are entangled in their quantum number flavour. These systems are oscillating and decaying in time and differently to other systems they violate the CP symmetry, which relates the behaviour of matter and antimatter. In detail, a generalized Bell inequality is presented and some interesting choices of observables are shown, e.g. a Bell inequality that is violated by the CP violating parameter. The second part of the talk discusses systems of massive spin 1/2 particles and describes how the entanglement of spin and momentum degrees of freedom change when considered by different inertial observers. Last but not least it is demonstrated how the maximally possible degree of violation of a Bell inequality, using the Pauli-Lubanski spin observable, can be recovered by any inertial observer. INHALT ====== Kapitel Titel Position --------------------------------------------------------------------- 1. Vorspann 00:00:00 2. Overview. The EPR scenario 00:00:25 3. Neutral kaons 00:06:38 4. Generalized Bell inequality for kaons 00:10:58 5. Symmetry violation and nonlocality 00:17:57 6. Bipartite qubits 00:25:26 7. Entanglement of massive spin 1/2 particles 00:30:59

Quantenphysik, Bellsche Ungleichung, CP-Verletzung

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