Radiation levels in parts of the Marshall Islands in the central Pacific Ocean, where the United States conducted nearly 70 nuclear tests during the Cold War, are still alarmingly high. Columbia University researchers tested soil samples on four uninhabited isles and discovered that they contained concentrations of nuclear isotopes that are significantly higher than those found near Chernobyl and Fukushima.
Scientists have visualized the electronic structure in a microelectronic device for the first time, opening up opportunities for finely tuned high-performance electronic devices.
A group of physicists at UNSW Sydney have built a super-fast version of the central building block of a quantum computer. The research is the milestone result of a vision first outlined by scientists 20 years ago.
Hailed as a pioneer by Photonics Media for his previous discoveries of supercontinuum and Cr tunable lasers, City College of New York Distinguished Professor of Science and Engineering Robert R. Alfano and his research team are claiming another breakthrough with a new super class of photons dubbed 'Majorana photons.' They could lead to enhanced information on quantum-level transition and imaging of the brain and its working.
The quantum logic clock -- perhaps best known for showing you age faster if you stand on a stool -- has climbed back to the leading performance echelons of the world's experimental atomic clocks.
Chinese scientists from Hefei Institute of Physical Science and Canadian scientists have produced a theoretical model via computer simulation to predict properties of hydrogen nanobubbles in metal.
Light-induced breakage of chemical bonds can lead to damage in the body and environment, but techniques for studying this photochemical reaction have been limited to before and after snapshots. With attosecond lasers and a technique to probe the energy states of photoexcited molecules, UC Berkeley chemists have made a movie of the process preceding breakup. The technique will help study biological molecules that absorb light without breaking bonds, such as rhodopsin in the retina.
Researchers at the National Institute of Standards and Technology (NIST) have upgraded their compact atomic gyroscope to enable multitasking measurement capabilities and measure its performance, important steps toward practical applications.
Physicists at the University of Innsbruck are proposing a new model that could demonstrate the supremacy of quantum computers over classical supercomputers in solving optimization problems. In a recent paper, they demonstrate that just a few quantum particles would be sufficient to solve the mathematically difficult N-queens problem in chess even for large chess boards.
A research team led by physicists at the University of California, Riverside, has observed, characterized, and controlled dark trions in a semiconductor -- ultraclean single-layer tungsten diselenide -- a feat that could increase the capacity and alter the form of information transmission.