
Weyl loops link up
Elaborate quantum structures have a novel topology and must be described using knot theory
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Isabelle Dumé is a contributing editor to Physics World. She has more than 10 years of experience in science writing and editing in condensed-matter physics relating to technology/nanotechnology/biotechnology, astronomy and astrophysics, energy and the environment, biology and medicine. She has an MSc in advanced materials and a PhD in magnetism. In her spare time, she helps to organize cafés scientifiques.
Elaborate quantum structures have a novel topology and must be described using knot theory
"Traps" for charge carriers reduce the longevity of these promising solar-cell materials as well as their efficiency
Cerium zirconium pyrochlore material displays liquid-like magnetic order, say researchers
A laser pulse that largely circumvents the inherent symmetry of light waves could be used to manipulate quantum information
New data reveals that number of aerosol particles exhaled by people who are exercising increases 132-fold on average during peak activity
New device might find applications in flexible lighting and smart displays that can be used at night without disrupting the body's biological clock
Devices containing a "bumpy" carbon-based material work at freezing temperatures
New device operates at femtosecond time scales thanks to light-field control of real and virtual charge carriers
New work sheds fresh light on structural changes during metal processing
While not a worry in itself, the increase could serve as an indirect indicator of fossil fuel usage