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PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE

PIRSA:C11006 - Conceptual Foundations and Foils for Quantum Information Processing - 2011PODCAST Subscribe to podcast

Conceptual Foundations and Foils for Quantum Information Processing

Organizer(s): Giulio Chiribella   Robert Spekkens   Anne Broadbent  

Collection URL: http://pirsa.org/C11006


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PIRSA:11050054  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Uncertainty, nonlocality & complementarity
Speaker(s): Jonathan Oppenheim
Abstract:
Date: 12/05/2011 - 11:40 am

PIRSA:11050043  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Guess your neighbor input
Speaker(s): Antonio Acin
Abstract: We present “guess your neighbor input” (GYNI), a multipartite nonlocal task in which each player must guess the input received by his neighbor. We show that quantum correlations do not perform better than c... read more
Date: 12/05/2011 - 2:00 pm

PIRSA:11050034  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Communication cost Vs Bell inequality violation
Speaker(s): Marc Kaplan
Abstract: In 1964, John Bell proved that independent measurements on entangled quantum states lead to correlations that cannot be reproduced using local hidden variables. The core of his proof is that such distributions violate some logical constraints known as Bell inequalities. This remarkable result establ... read more
Date: 12/05/2011 - 2:50 pm

PIRSA:11050048  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Generalised entropies, information causality, and non-local games
Speaker(s): Anthony Short
Abstract: We will explore generalisations of the Shannon and von Neumann entropy to other probabilistic theories, and their connection to the principle of information causality. We will also investigate the link between information causality and non-local games, leading to a new quantum bound on computing the... read more
Date: 12/05/2011 - 4:10 pm

PIRSA:11050049  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Does ignorance of the whole imply ignorance of the parts?
Speaker(s): Stephanie Wehner
Abstract: A central question in our understanding of the physical world is how our knowledge of the whole relates to our knowledge of the individual parts. One aspect of this question is the following: to what extent does ignorance about a whole preclude knowledge of at least one of its parts? Relying purely ... read more
Date: 12/05/2011 - 5:00 pm

PIRSA:11050042  ( MP4 Medium Res , MP3 , PDF ) Which Format?
A Quantum-Digital Universe
Speaker(s): Giacomo D'Ariano
Abstract: David Deutsch re-formulated the Church-Turing thesis as a physical principle, asserting that "every finitely realizable physical system can be perfectly simulated by a universal model computing machine operating by finite means". Such principle can be regarded as a new theoretical ... read more
Date: 13/05/2011 - 9:30 am

PIRSA:10050096  ( MP4 Medium Res , MP3 , PDF ) Which Format?
The Territory Around BQP: Results and Open Problems
Speaker(s): Scott Aaronson
Abstract: In this talk, I'll survey various "foils" of BQP (Bounded-Error Quantum Polynomial-Time) that have been proposed: that is, changes to the quantum model of computation that make it either more or less powerful. Possible topics include: postselected quantum computing, quantum computi... read more
Date: 13/05/2011 - 11:40 am

PIRSA:11050046  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Nonlocal Games and Computational Complexity: A Survey
Speaker(s): Tsuyoshi Ito
Abstract: A seminal work by Cleve, Høyer, Toner and Watrous (quant-ph/0404076) proposed a close connection between quantum nonlocality and computational complexity theory by considering nonlocal games and multi-prover interactive proof systems with entangled provers. It open... read more
Date: 13/05/2011 - 2:00 pm

PIRSA:11050045  ( MP4 Medium Res , MP3 , PDF ) Which Format?
Data tables, dimension witnesses, and QKD
Speaker(s): Nicolas Brunner
Abstract: We address the problem of testing the dimensionality of classical and quantum systems in a ‘black-box’ scenario. Imagine two uncharacterized devices. The first one allows an experimentalist to prepare a phy... read more
Date: 13/05/2011 - 2:50 pm

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