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. 

  

 

Wednesday Jun 02, 2004
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For over three hundred years, physicists and mathematicians have been trying to understand how stable the Earth really is. Could gravitational forces from other planets lead to drastic changes in Earth’s orbit? Will we collide with other planets or be ejected into interstellar space? stability, solar systems, Scott Tremaine, Copernicus, Copernican principle, Kepler, Newton, motion, gravity, N-Body, dynamical system, Laplace, round off error, gravitational microlensing, MOSTorbit, chaos

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Friday Aug 15, 2003

Quantum mechanics, information theory, and relativity theory are the basic foundations of theoretical physics. The acquisition of information from a quantum system is the interface of classical and quantum physics. Special relativity imposes severe restrictions on the transfer of information between distant systems. Various applications will be presented.

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Friday Aug 15, 2003
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Superselection rules are limitations on the physically realizable quantum operations that can be carried out by a local agent. For example, it is impossible to cre­ate or destroy an isolated particle that carries locally conserved charges, such as an electrically charged particle, a fermion, or (in a two­ dimensional medium) an anyon. Recently, Popescu has suggested that su­perselection rules might have interesting implications for the security of quantum cryptographic protocols.

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