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US loses status as a colossus of science

Submitted by JMiszczak on Mon, 15/11/2010 - 11:40.

Michael Banks writes at Physics World: ''The US is no longer a "colossus of science" according to a new report looking into the country’s scientific output. Written by information-services provider Thomson Reuters, it says that although the US still holds a "commanding" lead in terms of its research impact, its forerunner status is being eroded. The report blames this on a rapid rise in scientific publishing from countries in Asia and Europe.''
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A light transistor based on photons and phonons

Submitted by JMiszczak on Sun, 14/11/2010 - 18:56.

Dr. Olivia Meyer-Streng at IDW writes: ''The ability to control the propagation of light is at the technological heart of today’s telecommunication society. Researchers in the Laboratory of Photonics and Quantum Measurement led by Prof. Tobias J. Kippenberg (now EPFL) have discovered a novel principle to accomplish this, which is based on the interaction of light (photons) with mechanical vibrations (phonons).

EU-funded team in quantum success story

Submitted by JMiszczak on Thu, 11/11/2010 - 16:48.

Quantum communication networks are high on Europe's agenda, with particular focus being given to quantum memory or information storage. Meeting the challenge head on to make such information accessible to users is a team of scientists from Denmark who used two 'entangled' light beams to store quantum information. The research study, supported by the EU with a combined funding of almost EUR 16 million, is presented in the journal Nature Physics.

Winter School on QKD - Scholarships available!

Submitted by JMiszczak on Tue, 09/11/2010 - 09:28.

ID Quantique will be organizing the third Winter School on Practical Quantum Cryptography in January 2011 in the Swiss Alps. The goal of this program is to introduce, to a general audience of physicists and computer scientists with little or no background in practical quantum cryptography, this exciting topic in a relaxed and stimulating atmosphere. The program also includes hands-on tutorials, as well key note lectures by renowned researchers Nicolas Gisin (University of Geneva), Renato Renner (ETH Zurich) and Vadim Makarov (Norwegian University of Science and Technology).

Contest sponsored by ID Quantique

Submitted by Isabeau on Tue, 05/10/2010 - 09:56.

Quantiki needs your contribution and is going to appreciate it! If you feel you can provide a significant input for our Wiki project, i.e. create a new, fascinating article or expand an existing one to make it more comprehensive and educational, this is the best moment to do so. Your knowledge will certainly increase the satisfaction of our visitors and contributing to our project will definitely bring you immense satisfaction and eternal gratitude of quantum community ;)

Flavors of entanglement

Submitted by JMiszczak on Thu, 30/09/2010 - 08:51.

The entanglement of quantum objects can take surprising forms. Quantum physicists at the University of Innsbruck have investigated several flavors of entanglement in four trapped ions and report their results in the journal Nature Physics. Their study promotes further developments towards quantum computing and a deeper understanding of the foundations of quantum mechanics.<!--eec6d63ab9254743b4cb276771aa8eaa-->
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Photon pairs take a quantum walk

Submitted by JMiszczak on Fri, 24/09/2010 - 07:40.

<p>Hamish Johnston at PhysicsWorld writes: ''A new optical chip that allows pairs of photons to take a quantum walk has been unveiled by an international team of physicists. The tiny device contains an array of 21 coupled optical waveguides and could provide greater insight into quantum interference. Further in the future, the technology could find use in quantum computers.''</p>
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Computers set for quantum leap

Submitted by Burgarth on Mon, 20/09/2010 - 11:09.

A new photonic chip that works on light rather than electricity has been built by an international research team, paving the way for the production of ultra-fast quantum computers with capabilities far beyond today’s devices. Future quantum computers will, for example, be able to pull important information out of the biggest databases almost instantaneously. As the amount of electronic data stored worldwide grows exponentially, the technology will make it easier for people to search with precision for what they want.

A spin on graphene

Submitted by JMiszczak on Tue, 14/09/2010 - 11:35.

Sami Mitra at APS Physics writes: ''Whether quantum dots will prove to be reliable building blocks for a quantum computer will depend on how well we measure and control their charge and spin.

Peer review highly sensitive to poor refereeing

Submitted by Editor on Fri, 10/09/2010 - 08:02.

James Dacey at PhysicsWorld writes: ''Just a small number of bad referees can significantly undermine the ability of the peer-review system to select the best scientific papers. That is according to a pair of complex systems researchers in Austria who have modelled an academic publishing system and showed that human foibles can have a dramatic effect on the quality of published science. <!--break-->Stefan Thurner and Rudolf Hanel at the Medical University of Vienna set out to make an assessment of how the peer-review system might respond to incompetent refereeing.

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