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Boole Lecture - The simple argument that changed the world view of physics

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University College College - Lecture Hall G05 Western Gateway Building

Ireland

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The 10th Boole Lecture will be delivered by Professor Reinhard Werner, Leibniz University Hanover

TITLE: The simple argument that changed the world view of physics

ABSTRACT: It is very rare that a question touching on our world view can be decided experimentally. One such case, central to quantum mechanics, is the argument of Einstein, Podolski and Rosen from 1935, as sharpened by John Bell in the 1960s. In this talk I will present an elementary version of this argument, which shows that describing quantum systems in terms of their ‘properties’ or by a list of ‘true’ statements pertaining to them is bound to fail. So it seems that quantum particles defy the rules of classical logic as laid out by George Boole. I will discuss an attempt by John von Neumann, the creator of the formalism of quantum mechanics, to identify a ‘quantum logic’ replacing Boole's rules. One might have hoped that this logic would play the same role for the programming of quantum computers as Boole's logic undoubtedly did for classical computers. However, quantum logic turned out to be quite useless for this purpose. This is related to the observation that quantum logic never changed the Laws of Thought (title of a book by Boole). What was needed instead was a formalism for actions on quantum systems, analogous to gates in a computer. I will give examples for quantum gates and highlight some typical features

This lecture is targeted at a general audience all are welcome and it will be proceeded by a light refreshments reception in the foyer at 6:00 pm .

Organisers:

Claus Koestler

Stephen Wills

School of Mathematical Sciences, Western Gateway Building, Western Road, University College Cork

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This event is sponsored by the Boole Centre for Research in Informatics, Department of Computer Science UCC, Insight Centre for Data Analytics, Irish Mathematical Society, Institute of Physics Ireland, School of Mathematical Sciences UCC

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University College College - Lecture Hall G05 Western Gateway Building

Ireland

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