Workshop in Honour of Reinhold A. Bertlmann Mitschnitt einer Veranstaltung der Fakultät für Physik der Universität Wien am Sonntag, dem 27. Juni 2010 im Seminar-Hotel Schneeberghof in Puchberg am Schneeberg Teil 6A: Nikolaos Mavromatos: Quantum Gravity and Entangled Particle States (erster Teil) Moderation: Beatrix Hiesmayr Some Quantum Gravity models entail a foamy structure for space time at microscopic (Planck-)scales. Matter in such backgrounds may experience quantum decoherence, as a result of information being carried out by gravitational degrees of freedom, not accessible by local scattering experiments. Concrete examples of such models may be provided by string theory with space-time membrane defects. In all such models, the quantum CPT operator of the effective field theory of the low-energy degrees of freedom may be "pertubatively ill-defined" leading to modifications in the Einstein-Podolsky-Rosen (EPR) correlators in entangled particle states. These may be falsifiable in future upgraded facilities of neutral mesons, for instance a possible upgrade of DaFNE detector or B-mesons. Complementary tests / bounds of such a decoherence may also be provided by cosmic neutrino and high-energy photon astronomies. INHALT ====== Kapitel Titel Position --------------------------------------------------------------------- 1. Vorspann 00:00:00 2. Entanglement in quantum mechanics 00:00:19 3. Decoherence 00:11:02 4. Quantum gravity space-time foam 00:20:50 5. EPR modifictions 00:27:52 6. The CPT theorem 00:36:40 7. Space-time foam and intrinsic CPT violation 00:45:24 8. Stochastic light-cone fluctuations 00:54:20 9. Order of magnitude estimates 01:00:20

Quantengravitation, Verschränkter Zustand, CPT-Theorem

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