
Apr 18 2012
Stellenbosch Node Seminar: Profs D. Marcus Appleby and Prof Christopher A. Fuchs (Perminter Institute, Canada)
NITheP cordially invites you to a seminar by:
Prof D. Marcus Appleby and Prof Christopher A. Fuchs
Perimeter Institute for Theoretical Physics
Waterloo, Canada
http://perimeterinstitute.ca/personal/cfuchs/
Date: Wednesday 18th of April 2012
Time: 14:00
Venue: NITheP Stellenbosch Node, Seminar Room
TITLE: Quantum Theory in a New Frame
ABSTRACT: Physicists have become accustomed to the idea that a theory's content is always most transparent when written in coordinatefree language. Sometimes, though, the choice of a good coordinate system can be useful for settling various deep conceptual issues. This is particularly so for informationtheory oriented approaches to the foundations of quantum theory. This talk will motivate the search for one such coordinate system for finite dimensional quantum theory, the key arena for quantum information and computing. These are the socalled Symmetric Informationally Complete (SIC) quantum measurements. What is particularly surprising is how their existence would allow a rewriting of the quantum mechanical Born rule to be a formula purely in terms of probabilities, instead of as usual, a formula in terms of complex quantum states and operators. Unfortunately it has been an open mathematical problem for over 35 years as to whether these mathematical objects do indeed always exist. However, much progress has been made recently. We will sketch several of these recent developments.
Relevant papers:
http://arxiv.org/abs/0707.2071
http://arxiv.org/abs/quantph/0412001
Selfserving link where the book can be bought:
http://www.amazon.com/ComingAgeWithQuantumInformation/dp/0521199263
Navrae/Enquiries: René Kotzé
Tel: 021 808 2653
Email: renekotze@sun.ac.za
contact
 NITheP Stellenbosch node
 Rene Kotze
National Institute for Theoretical Physics
Private Bag X1
Matieland,
Stellenbosch, South Africa,7602  Phone: +27 (0)21 808 2653  Fax: +27 (0)218083862
 NITheP Gauteng node
 Paula Marais
Physical address: University of Witwatersrand
School of Physics
Jan Smuts Avenue
Braamfontein
JHB
 Phone: 27 (0)11 717 6898  Fax:
 NITheP KZN node
 Ms Nelisiwe Mncube
National Institute for Theoretical Physics
University of KwaZuluNatal
Private Bag x54001
Durban
4000
South Africa
 Phone: 27 (0)31 260 7570  Fax: 27 (0)31 260 8090
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