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PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE

Displaying all lectures given by: Steve Weinstein


PIRSA:17080074  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Learning the Einstein-Podolsky-Rosen correlations on a Restricted Boltzmann Machine
Speaker(s): Steve Weinstein
Abstract: We construct a hidden variable model for the EPR correlations using a Restricted Boltzmann Machine. The model reproduces the expected correlations and thus violates the Bell inequality, as required by Bell's theorem. Unlike most hidden-variable models, this model does not violate the&nb... read more
Date: 22/08/2017 - 3:30 pm

PIRSA:16060108  ( MP4 Medium Res , MP3 , PDF ) Which Format?
The origin of arrows and time I
Abstract:
Date: 27/06/2016 - 10:45 am
Collection: Time in Cosmology

PIRSA:15040063  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Signals, Noise and Decoherence
Speaker(s): Steve Weinstein
Abstract: It is well known - to those who know it - that noise and randomness can enhance signal resolution. I'll present an easy-to-follow example from digital audio that illustrates the way in which adding noise ("dither") prior to measurement enhances the accuracy with which we are able to distinguish the... read more
Date: 28/04/2015 - 3:30 pm

PIRSA:11020105  ( MP4 Medium Res , MP3 , PDF ) Which Format?
The universe in a grain of sand
Speaker(s): Steve Weinstein
Abstract: Recently rediscovered results in the theory of partial differential equations show that for free fields, the properties of the field in an arbitrarily small volume of space, traced through eternity, determine completely the field everywhere at all times. Over finite times, the field is determine... read more
Date: 04/02/2011 - 1:00 pm

PIRSA:10050061  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Discussion on: The limits of mathematical description
Speaker(s): Steve Weinstein
Abstract:
Date: 22/05/2010 - 1:30 pm

PIRSA:08090074  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Decoherence and the (non)emergence of classicality.
Speaker(s): Steve Weinstein
Abstract: It is widely believed that the dynamical mechanism of decoherence plays a key role in understanding the emergence of classicality from quantum systems, via the environment-induced superselection of a preferred set of subsystem states, the density matrices for which are approximately diagonal in the ... read more
Date: 29/09/2008 - 3:00 pm

PIRSA:08010011  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Backward causation models for quantum correlations
Speaker(s): Steve Weinstein
Abstract: Bell\'s theorem is commonly understood to show that EPR correlations are not explainable via a local hidden variable theory. But Bell\'s theorem assumes that the initial state of the particles is independent of the final detector settings. It has been proposed that this independence assumption migh... read more
Date: 15/01/2008 - 4:00 pm
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