History for Physics: Quantum Foundations Mitschnitt einer Veranstaltung des Institute for Quantum Optics and Quantum Information (IQOQI) und des Max-Planck-Instituts für Wissenschaftsgeschiche am Dienstag, dem 24. September 2019 im Lise Meitner-Hörsaal der Fakultät für Physik der Universität Wien Teil 12. Otfried Gühne und H. Chau Nguyen Otfried Gühne: Quantum Steering (1935-2007) H. Chau Nguyen: Quantum Steering - The Modern Formulation and Applications Moderation: Flavio Del Santo Kamera: Chiara Cardelli, Sebastian Horvat Schnitt: Daniel Winkler Otfried Gühne ist Professor für theoretische Quantenoptik an der universität Siegen. H. Chau Nguyen ist Postdoktorand an der universität Siegen. Abstract: Quantum steering is a notion introduced by Schrödinger in order to capture the essence of the Einstein-Podolsky-Rosen argument. After Schrödinger's work, however, not many people continued to work on it. This changed in 2007, when Wiseman and co-workers introduced a modern formulation, and since then quantum steering has established itself as a central concept in quantum information processing. In our talks we will present the historical development and the modern approach to quantum steering. In the historical part ("Quantum steering from 1935 to 2007", given by O. Gühne) we will discuss the few works from 1935 to 2007 which tried to extend Schrödinger's approach. Here, it turns out that several results were independently (re)proven by different scientists. In the second part ("A geometric characterisation of quantum steering", given by H. C. Nguyen), we will discuss a current approach to the problem of determining quantum steering, which also allows to connect steering to other topics such as Bell inequalities and generalized measurements in quantum mechanics. INHALT ====== Kapitel Titel Position --------------------------------------------------------------------- 1. Vorspann 00:00:00 2. O. Gühne: EPR arguments. Letters and papers 00:00:08 3. O. Gühne: The S+-Theorem 00:17:29 4. O. Gühne: Quantum steering 00:21:46 5. Questions from the audience 00:25:18 6. H. C. Nguyen: The EPR experiment (Bohm's version) 00:27:50 7. H. C. Nguyen: Why is quantum steering interesting? 00:39:05 8. H. C. Nguyen: Examples 00:46:32

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Quantenphysik, Einstein-Podolsky-Rosen-Paradoxon, Geschichte

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