皆様

今週木曜日に、京都大学にてKohei Kishidaさんのご講演があります。

詳細は以下のとおりです。どうぞお気軽にご参加ください。

京都大学数理解析研究所

照井一成

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Time:    11:00-12:00, 28 June, 2018

Place:    Rm 478, Research Building 2, Main Campus, Kyoto University

    京都大学 本部構内 総合研究2号館 4階478号室

    http://www.kyoto-u.ac.jp/en/access/yoshida/main.html (Building 34)

Speaker: Kohei Kishida (Dalhousie University)

Title: A Topological Approach to Quantum Contextuality

Abstract:

Non-locality and contextuality are paradoxical phenomena in quantum physics 

that are of foundational and potentially great practical significance:  

While non-locality is known to be fundamental to quantum communication, 

the more general phenomenon of contextuality may provide a key resource for 

quantum computation, as suggested by recent studies. This has motivated 

several approaches to the high-level expression of non-locality and 

contextuality that can be independent of the concrete formalism of quantum 

mechanics.

Starting with a review of the paradoxical probabilistic behavior of 

non-locality, this talk lays out some formalisms that express non-locality 

and contextuality.  In particular, the topological approach makes it clear 

that contextuality is isomorphic to various phenomena in other disciplines.  

We show two results, one on the relationship between probabilistic and 

qualitative versions of contextuality, and the other on how to use a 

topological idea to demonstrate (qualitative) contextuality.

This talk is based on several joint works with Samson Abramsky, 

Rui Soares Barbosa, Ray Lal and Shane Mansfield.