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Title: Dark Matter and Dark Energy from Topology
Originating Office: IAS
Speaker: Murayama, Hitoshi
Issue Date: 31-May-2011
Event Date: 31-May-2011
Group/Series/Folder: Record Group 8.15 - Institute for Advanced Study
Series 3 - Audio-visual Materials
Location: 8.15:3 box 1.7
Notes: IAS Conference on Cosmology since Einstein.
IAS title: Plenary Talk 2: 'Dark Matter and Dark Energy from Topology'.
Abstract: Topological defects have been an important ingredient in early cosmology, while relevant to a wide variety of research including condensed matter and atomic physics. Cosmologists have relied on the Kibble mechanism to estimate the abundance of such defects, while it has become well‐known in the atomic physics community that it has to be revised by the Zurek’s estimate. Surprisingly, little attention has been paid by cosmologists on the Kibble‐Zurek estimate. Prof Murayama points that the abundance has been grossly underestimated, that the monopole constraints exclude Pati‐Salam phase transitions below the inflation scale. It also points to a new possibility of dark energy.
Duration: 54 min.
Appears in Series:8.15:3 - Audio-visual Materials
Videos for Public -- Distinguished Lectures