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 arXiv.org. 

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

 

  

 

 

Friday Aug 24, 2018
Speaker(s): 

We propose to generalise classical maximum likelihood learning to density matrices. As the objective function, we propose a quantum likelihood that is related to the cross entropy between density matrices. We apply this learning criterion to the quantum Boltzmann machine (QBM), previously proposed by Amin et al. We demonstrate for the first time learning a quantum Hamiltonian from quantum statistics using this approach. For the anti-ferromagnetic Heisenberg and XYZ model we recover the true ground state wave function and Hamiltonian.

Collection/Series: 
 

 

Thursday Aug 23, 2018
Speaker(s): 

Divergent series

 

 

Thursday Aug 23, 2018
Speaker(s): 

Relativistic particle, Relativistic field theories, Canonical energy momentum, Action for Maxwell

 

 

Wednesday Aug 22, 2018
Speaker(s): 

Saddle-point approximation, Stokes' phenonmenon

 

 

Wednesday Aug 22, 2018
Speaker(s): 

Retarded Green's function, From Maxwell to special relativity

 

 

Tuesday Aug 21, 2018
Speaker(s): 

Abstract TBA

Collection/Series: 
Scientific Areas: 
 

 

Tuesday Aug 21, 2018
Speaker(s): 

Asymptotic series, Stirling's approximation

 

 

Tuesday Aug 21, 2018
Speaker(s): 

Maxwell's theory: charge conservation, Maxwell's triumph, potentials, wave equations

 

 

Monday Aug 20, 2018
Speaker(s): 

Operations on distributions, Applications of distributions

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