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EPJ Quantum Technology Highlight - Quantum simulators explained

Posted By admin, 12 August 2014

11 August 2014 Springer Science+Business Media

Everything you ever wanted to know about quantum simulators summed up in a new review from EPJ Quantum Technology

As part of a new Thematic Series on Quantum Simulations, the open access journal EPJ Quantum Technology has just published an overview of just what a quantum simulator is, namely a device that actively uses quantum effects to answer questions on model systems. This review, published by Tomi Johnson and colleagues from the Centre for Quantum Technologies in Singapore and the University of Oxford, UK, outlines various approaches used in quantum simulators.

Specifically, the authors focus on the difference between the purpose of operations referred to as 'simulation' and 'computation'. They argue this distinction is related to the purpose of an operation, to our level of confidence in and to our expectations with regard to its accuracy.

They then explain the role of simulations in science, in particular, how simulation reveals information about a mathematical function or model in relation to a system. This approach is reminiscent of physicist Richard Feynman's definition of simulation, which is akin to using a physical device to learn about a real physical system.

Such simulation of the function of a system only takes its full significance when compared with the outcome of the same function on a real-life system of interest. The outcome helps decide whether or not the model accurately represents the real system. If the representation is thought to be accurate, the quantum simulator can then loosely be considered to be a simulator for the system of interest.

Finally the authors also explain the threshold between quantum and classical simulations. In this context, Johnson and colleagues suggest that there are many more questions pertaining to the work of simulators that need to be answered. These include: Can we predict in advance where the results of quantum simulators are more sensitive to errors? How does this overlap with the regimes of classical simulability?

Johnson, T. H., Clark, S. R. and Jaksch, D. (2014). What is a quantum simulator? European Physical Journal Quantum Technology.
DOI 10.1186/epjqt10

Tags:  EPJ  European Physical Journal  quantum simulator 

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The new issue of ALICE MATTERS is online

Posted By Administration, 05 August 2014
The new issue of ALICE MATTERS is now online. Click here to read it.

In this issue, you can read about:
the new ALICE Run Control Centre
ALICE researchers receiving the Lise Meitner Prize 2014
 EPLANET
and much more...

Tags:  ALICE Matters  CERN  newsletter 

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EuCheMS Brussels News Updates: the July issue is out

Posted By Administration, 01 August 2014

EuCheMS Brussels News Updates, July gives news on the following topics:

  • Italy takes over presidency of the EU;
  • Public-private partnerships under Horizon 2020; 
  • Network on hydrocarbon extraction;
  • Circular economy;
  • Public consultation on research and innovation.

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Which side to put the survival blanket? a new paper by Laurence Viennot and Nicolas Décamp

Posted By Administration, 29 July 2014
Abstract: Although a survival blanket is a well-known object, it is not obvious which side, silver or gold, should be put outside in order better to protect against cold. This paper sums up the reasons why this problem may be instructive, beyond its practical implications: Common ideas and instructions for use share a restricted analysis, limited to the high reflective power of the silver side. An analysis and a solution of this problem are proposed, and some activities with students are suggested. 

Download the full paper.

More info
Website of the EPS Physics Education Division
MUSE project

Tags:  EPS Physics Education Division  MUSE  papers  PED 

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ERC Newsletter: the June 2014 issue is out

Posted By Administration, 26 June 2014
In the ERC Newsletter Ideas of June 2014, you can read about:

Research in the spotlight
Quantum research spins out start-up
Focus on Norway

Access Ideas online here.

Tags:  ERC  newsletter 

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Launch of a new science Magazine - Technologist

Posted By Administration, 26 June 2014

26 June 2014 - A new European science magazine was launched this week. Technologist is the fruit of a partnership between independent journalists and universities. It is available in three languages and is sold in 20 countries in Europe.

More info
www.technologist.eu

Tags:  magazine  sciences  techology 

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EuCheMS Brussels News Updates: the June is on line

Posted By Administration, 16 June 2014

EuCheMS Brussels News Updates, June gives news on the following topics:

  • New university ranking system launched in Europe;
  • Regulation of Access to Research Findings; 
  • M-ERA.NET Call 2014 with Topics in Materials and Engineering launched;
  • Selected Horizon 2020 calls;
  • Roadmap: Proposal for an implementing act on the introduction of a European Professional Card for particular professions.

Tags:  EuChems  newsletter 

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European Research Area: the second issue of the newsletter is online

Posted By Administration, 13 June 2014
Read the second issue of the ERA newsletter here

Tags:  ERA  Gender  newsletter 

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AAPPS: the bulletin of June 2014 is online

Posted By Administration, 12 June 2014
The AAPPS Bulletin is available online at: http://aappsbulletin.org/

Tags:  AAPPS  newsletter 

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Physics Eduction Division: new publication by Laurence Viennot

Posted By Administration, 30 May 2014
Several topics dealt with in the MUSE files posted on this web-site are also analysed in a book : Thinking in Physics The pleasure of reasoning and understanding, by Laurence Viennot. This book is mainly aimed at teachers and teacher trainers. It relies on the same principles as those which inspire project MUSE.

Thinking in Physics
The pleasure of reasoning and understanding
By Laurence Viennot
Hardback, 182 pages
Springer 2014

The book has three parts:
•    making sense of special scientific ways of reasoning (words, images, functions)
•    making connections between very different topics, each illuminating the other
•    simplifying, looking for consistency, and avoiding incoherent over-simplification

Table of Contents
Part I    Learning to think:  words, images and functions
- Essential tools for comprehension
- Some surprising invariances
- Analysis of functional dependence: a powerful tool
- Putting things into practice
Part II   Physics: Linking factors
- Links between phenomena in terms of type of functional dependence.
- Te relationships between different approaches to the same phenomenon
Part III  Simplicity:  ruin or triumph of coherence?
- Optimising simple experiments
- Popularising physics: what place for reasoning?

Read more
Download the leaflet
Visit the PED website
Info about the MUSE project

Tags:  PED  Physics Education Division  publication  teaching 

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