Physical Review Letters

Researchers simulate behavior of 'active matter'

Microspheres in a fluid, spinning in opposite directions, create flow patterns that affect other particles. Computer simulations show the particles self-assembling into different structures at different concentrations: ...

dateJun 02, 2015 in Soft Matter
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Getting the measure of matter

Peter Rohde and his collaborators develop big ideas – and a measure of corny humour – using photons, the smallest possible units of light. (Did you hear about the photon that walked into a hotel and the ...

dateJun 16, 2015 in Quantum Physics
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The cosmic start of lightning

Even though lightning is a common phenomenon, the exact mechanism triggering a lightning discharge remains elusive. Scientists at the Dutch national research institute for mathematics CWI, the University ...

dateJul 01, 2015 in General Physics
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Researchers align atomic friction experiment

Working together to study friction on the atomic scale, researchers at UC Merced and the University of Pennsylvania have conducted the first atomic-scale experiments and simulations of friction at overlapping ...

dateJun 24, 2015 in Nanophysics
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Using lasers to see the shape of molecules

A scientist in a crisp, white lab coat and protective eye goggles sits behind a safety shield, controller in hand. In front of him is a powerful titanium-sapphire laser, aimed at a crystal lens. His thumb gently squeezes ...

dateJun 24, 2015 in General Physics
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