Workshop »Interplay of quantum information, foundations and gravity« Mitschnitt einer Veranstaltung des Institute for Quantum Optics and Quantum Information (IQOQI) am Freitag, dem 1. Juni 2018 im Theatersaal der Österreichischen Akademie der Wissenschaften Teil 21: Achim Kempf: Stone age tools for quantum gravity? Kamera und Schnitt: Daniel Winkler Achim Kempf ist Professor für angewandte Mathematik an der University of Waterloo in Waterloo (Ontario, Kanada). Abstract: The development of relativity and of quantum theory each required the abandonment of concepts that had previously widely been considered self-evident. In the century since, the tremendous level of difficulty that has been encountered in approaches to quantum gravity indicates that it will again be necessary to challenge long-held concepts, presumably concepts that sit deep and go a long way back. The difficulty is, of course, to know how deep to dig or how far back in time to search for the origins of the misconceptions that may need to be overcome. Some conceptual tools from the stone age that we still use in physics today, such as the barbed arrow to indicate maps, are probably fine. I will discuss that others, such as the measuring stick, may need to be replaced, for example, by the notion of the correlation strength of vacuum fluctuations. INHALT ====== Kapitel Titel Position --------------------------------------------------------------------- 1. Vorspann 00:00:00 2. Quantum field theory and general relativity 00:00:08 3. Stone age tools 00:10:50 4. Upgrading rulers and clocks 00:20:21 5. Advantages 00:31:52 6. Does this help quantum gravity? 00:43:28 7. Experimental tests 00:56:58 8. Questions from the audience 00:59:20

Quantengravitation

video/mp4

MP4-kompatibler Mediaplayer

PT1H6M30S

(c) Österreichische Zentralbibliothek für Physik