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Breaking the limits of classical physics

(Phys.org) -- With simple arguments, researchers show that nature is complicated. Researchers from the Niels Bohr Institute have made a simple experiment that demonstrates that nature violates common sense – the world is different than most people believe. The experiment illustrates that light does not behave according to the principles of classical physics, but that light has quantum mechanical properties.

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Quantum physics mimics spooky action into the past

Physicists of the group of Prof. Anton Zeilinger at the Institute for Quantum Optics and Quantum Information (IQOQI), the University of Vienna, and the Vienna Center for Quantum Science and Technology (VCQ) have, for the first time, demonstrated in an experiment that the decision whether two particles were in an entangled or in a separable quantum state can be made even after these particles have been measured and may no longer exist. Their results will be published this week in the journal Nature Physics.

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The Emperor, Darth Vader, and the Ultimate Ultimate Theory of Physics

PASADENA The theory is so obscure there’s not a Wikipedia page about it yet. It might be impossible to formulate mathematically. One theoretical physicist calls it the Emperor Palpatine of theories, even more powerful and inscrutable than the Darth Vader theory that he and others have been studying intensively.

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Highest honors for quantum computer pioneer

Experimental physicist Rainer Blatt from the Institute for Quantum Optics and Quantum Information (IQOQI) in Innsbruck, Austria, will receive the Stern-Gerlach Medal of the German Physical Society. The medal will be presented by Germany's Research Minister Anette Schavan in Berlin on Tuesday 27 March 2012.

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Taking a closer look at molecular electronics

Molecules and polymers have unique electronic and optical properties suitable for use in electronic devices. These properties, however, are complex and not well understood

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US National Academies panel recommends expanding alternative nuclear fusion experiments

(PhysOrg.com) -- The National Academies in the United States, made up of the four organizations: the National Academies of Science and Engineering, the Institute of Medicine and the National Research Council, has issued an interim report in the National Academies Press, advocating that additional research be put into studying alternative technologies for imploding fuel used in fusion reactions.

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3 Steps to Chaos-Proof Your Brain

Contemporary life, with its flurry of e-mails, alerts, and appointments, can feel overwhelming, even for entrepreneurs. Train your brain to deal with the chaos. Entrepreneurs these days are bombarded with e-mails and information from the moment they grab their smartphones in the morning until they click their laptops closed before bed

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New diffraction phenomenon observed and explained

'Sub-Bragg diffraction' is what researchers at the Complex Photonic Systems group of the University of Twente’s MESA+ Institute for Nanotechnology call their surprising observations. An ‘energy dip’ can also occur when reflection takes place in regular crystal structures at ultra-low energy frequencies . Theoretically, the lowest energy at which this can take place has been unshakably fixed for almost a century, as predicted in the so-called Bragg conditions.

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Manipulating the texture of magnetism

Knowing how to control the combined magnetic properties of interacting electrons will provide the basis to develop an important tool for advancing spintronics: a technology that aims to harness these properties for computation and communication. As a crucial first step, Naoto Nagaosa from the RIKEN Advanced Science Institute, Wako, and his colleagues have derived the equations that govern the motion of these magnetic quasi-particles.

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Manipulating the texture of magnetism

Knowing how to control the combined magnetic properties of interacting electrons will provide the basis to develop an important tool for advancing spintronics: a technology that aims to harness these properties for computation and communication.

Read More »
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