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How quantum physics could make 'The Matrix' more efficient

Researchers have discovered a new way in which computers based on quantum physics could beat the performance of classical computers. The work, by researchers based in Singapore and the UK, implies that a Matrix-like simulation of reality would require less memory on a quantum computer than on a classical computer. It also hints at a way to investigate whether a deeper theory lies beneath quantum theory.

Posted: Mar 29th, 2012

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Breakthrough in semiconductor structuring

ETH Zurich physicists, in collaboration with colleagues at universities in Switzerland and abroad, have made a breakthrough in the manufacture of monolithic semiconductor structures on silicon. The new structures are nearly perfect, and likely to revolutionise not only X-ray technology.

Posted: Mar 29th, 2012

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Fingerprints tell all thanks to gold nanoparticles

It has long been well established that fingerprints can be used to identify people or help convict them of crimes. Things have gone a lot further now: fingerprints can be used to show that a suspect is a smoker, takes drugs, or has handled explosives, among other things. In the journal Angewandte Chemie, Pompi Hazarika and David Russell describe the noteworthy progress that has recently been made.

Posted: Mar 29th, 2012

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Physicists mix two lasers to create light at many frequencies

A team of physicists at UC Santa Barbara has seen the light, and it comes in many different colors. By aiming high- and low-frequency laser beams at a semiconductor, the researchers caused electrons to be ripped from their cores, accelerated, and then smashed back into the cores they left behind. This recollision produced multiple frequencies of light simultaneously.

Posted: Mar 28th, 2012

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Nanotechnology and your views

Dr Robert Doubleday, Head of Research at the Centre for Science and Policy at the University of Cambridge, is helping to coordinate a European online debate about developments in nanotechnology. This process of public debate is designed to generate questions about nanotechnology and encourage academics to address some of these questions through research.

Posted: Mar 28th, 2012

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