Video Library

Since 2002 Perimeter Institute has been recording seminars, conference talks, public outreach events such as talks from top scientists 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 and 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 

Accessibly by anyone with internet, Perimeter aims to share the power and wonder of science with this free library.





Thursday Mar 28, 2013

In the first part of my talk I describe a search for
possible quantum spin liquid ground states for spin S=1 Heisenberg models on
the triangular lattice which was motivated by recent experiments on
Ba3NiSb2O9.  We use representation of
spin-1 via three flavors of fermionic spinon operators. The ground state where
one gapless flavor of spinons with a Fermi surface coexists with d+id
topological pairing of the two other flavors can explain available experimental
data. Despite the existence of a Fermi surface, this spin liquid state has

Scientific Areas: 


Wednesday Mar 27, 2013

Human monkeys are used to thinking about the problem of
choosing from a set of objects according to some desired, biased, probability
distribution. Just think about how you chose your partner(s). Even when it is
easy for you to do such a sampling, it can be difficult to do a quantum
sampling (Q-Sampling) of the same distribution. By Q-Sampling I mean the
creation of a coherent superposition of states of such objects whose amplitudes
are the (square roots of) of the specified distribution. In this talk I will

Scientific Areas: