Title
Roger Penrose: Dark matter, dark energy, and black holes, as essential ingredients of a new cyclic theory of the universe
Description (de)
Public Lecture im Rahmen des 9th Vienna Central European Seminar on Particle Physics and Quantum Field Theory
Mitschnitt einer Veranstaltung am Freitag, dem 30. November 2012 im Lise-Meitner-Hörsaal der Fakultät für Physik
Begrüßung und einleitende Worte: Helmuth Hüffel (Fakultät für Physik) und Piotr Chruściel (Fakultät für Physik)
Abstract: The theory of conformal cyclic cosmology (CCC) takes what we currently regard as the entire history of the Universe, from its Big-Bang origin (but without any "inflationary phase") to its final exponential expansion, to be just one aeon of a continual succession of such aeons. The big bang of each aeon is assumed to be an infinitely scaled down continuation of the exponentially expanding remote future of the aeon that preceded it. The existence of Einstein’s tiny positive constant Λ (i.e. dark energy) is essential to CCC's consistency, as is some primordial scalar material (taken to be dark matter). Colliding supermassive black holes in the aeon previous to ours would have important observational implications for CCC, detectable within the ubiquitous cosmic microwave background.
Sir Roger Penrose ist ein britischer Physiker und Mathematiker, der vor allem durch seine Beiträge zur Kosmologie und die nach ihm benannten nichtperiodischen Parkettierungen der Ebene bekannt geworden ist.
INHALT
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Kapitel Titel Position
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1. Vorspann 00:00:00
2. H. Hüffel: Begrüßung 00:00:32
3. P. Chruściel: Einleitende Worte 00:02:21
4. The big bang and inflation 00:06:48
5. The second law of thermodynamics 00:16:29
6. Black holes and singularities 00:26:36
7. Evaporating black holes 00:38:18
8. The extremely remote future 00:49:44
9. The second law in a cyclic universe 00:56:05
10. Ripples in the cosmic background 01:05:58
11. Questions from the audience 01:12:18