Video Library

Since 2002 Perimeter Institute has been recording seminars, conference talks, and public outreach events using video cameras installed in our lecture theatres.  Perimeter now has 7 formal presentation spaces for its many scientific conferences, seminars, workshops and educational outreach activities, all with advanced audio-visual technical capabilities.  Recordings of events in these areas are all available On-Demand from this Video Library and on Perimeter Institute Recorded Seminar Archive (PIRSA)PIRSA is a permanent, free, searchable, and citable archive of recorded seminars from relevant bodies in physics. This resource has been partially modelled after Cornell University's arXiv.org. 

  

 

Tuesday Mar 10, 2015
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I will talk about the physics of models in which dark matter consists of composite bound states carrying a large conserved dark “nucleon” number. The properties of sufficiently large dark nuclei may obey simple scaling laws, and this scaling can determine the number distribution of nuclei resulting from Big Bang Dark Nucleosynthesis. For plausible models of asymmetric dark matter, dark nuclei of large nucleon number, e.g. >~ 10^8, may be synthesised, with the number distribution taking one of two characteristic forms, which interestingly are broadly independent of initial conditions.

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Tuesday Mar 10, 2015
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Visible matter consists mostly of hydrogen and helium, only a small fraction

of which is in stars. Until recently, the bulk of the gas in the local

universe was in fact not seen. In the largest structures, massive galaxy

clusters, the gas is seen via its x-ray emission, but in the much more

numerous groups and isolated galaxies, it has not been possible to detect

it. I will describe how, in the last year or so, the situation has changed,

with the detection of a cross-correlation between the thermal SZ effect and

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Monday Mar 09, 2015
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The interplay of quantum mechanics and inter-particle interactions leads to enormously rich tapestry of quantum phases of matter. In this talk I will illustrate the unique synthesis offered by quantum entanglement on the landscape of quantum phases. I will especially discuss phases which do not show any kind of ordering even at the absolute zero temperature, two prime examples being spin liquids and quantum Hall phases.

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Friday Mar 06, 2015
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Friday Mar 06, 2015
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Friday Mar 06, 2015
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Thursday Mar 05, 2015
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Thursday Mar 05, 2015
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The Kerr metric of vacuum general relativity is expected to describe astrophysical black holes. Boson stars, on the other hand, are one of the simplest gravitating solitons, suggested as astrophysical compact objects, black holes mimickers and as dark matter candidates. Kerr black holes with scalar hair, found in [1], continuously interpolate between these two types of, per se, physically interesting solutions.

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Thursday Mar 05, 2015
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Thursday Mar 05, 2015
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