Physics >>

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Discovery – and link to Sun's 27-day cycle – could improve thunderstorm forecasting ...

The Ministry of Defence's (MOD) Defence Science and Technology Laboratory (Dstl) will today present a number of research projects to bring to market the science behind the world's most accurate atomic clocks. The Quantum Timing, Navigation and Sensing Showcase at the National Physical Laboratory in Teddington aims to accelerate the exploitation of quantum mechanics for highly accurate time keeping...

(Phys.org) —A promising material is lining itself up as a candidate for a quantum memory. A team at the Max Planck Institute for the Science of Light in Erlangen is the first to succeed in performing high-resolution spectroscopy and microscopy on individual rare earth ions in a crystal. With the aid of ingenious laser and microscopy technology they determined the position of triply charged positive...

(Phys.org) —A team of researchers from the Universities of Bath, Bristol and Dundee has discovered for the first time that ultrasonic waves can be used to grab several microparticles at a time, effectively creating a pair of invisible 'ultrasonic hands' that can move tiny objects, such as cells, under a microscope....

(Phys.org) —FOM researchers have discovered that objects floating on surface waves behave differently than expected. If a small number of floating objects is present on a water surface, these will drift to the locations where waves peak. However, a large number of floating objects will gather where the water is stationary. This finding might lead to new, efficient methods for cleaning up litter from...

Going back to the drawing board to find a way to overcome the technical limitations of their laser, a team led by François Légaré, professor at the INRS Énergie Matériaux Télécommunications Research Centre, developed a new concept offering a simpler laser design, control over new parameters, and excellent performance potential. Called "frequency domain optical parametric amplification" (FOPA), the...

Chapman University affiliated quantum physicist Yutaka Shikano, Ph.D., has published a milestone paper in the journal Nature Communications. The title of the article is "Aharonov-Bohm effect with quantum tunneling in linear Paul trap." The Aharonov-Bohm (AB) effect was proposed by Yakir Aharonov, who is the co-director of the Institute for Quantum Studies at Chapman University, and David J. Bohm in...

Superconductors are promising materials, with applications ranging from medicine to transport. Unfortunately, though, their use is for the time being limited to the very low temperatures (close to absolute zero) necessary for superconductivity to occur. Some materials, however, could be improved so as to obtain higher and energetically less "costly" critical temperatures. A team of researchers coordinated...

Researchers have taken a step toward practical applications for "hyperbolic metamaterials," ultra-thin crystalline films that could bring optical advances including powerful microscopes, quantum computers and high-performance solar cells....

Current computing is based on binary logic—zeroes and ones—also called Boolean computing, but a new type of computing architecture stores information in the frequencies and phases of periodic signals and could work more like the human brain using a fraction of the energy necessary for today's computers, according to a team of engineers....

The Continuous Electron Beam Accelerator Facility (CEBAF) at the U.S. Department of Energy's Thomas Jefferson National Accelerator Facility has achieved the final two accelerator commissioning milestones needed for approval to start experimental operations following its first major upgrade....

Very high power is needed to cut or weld using a laser beam. But this creates its own problem: the beam's energy deforms the mirrors that are focusing it to a point. When this happens, the beam expands and loses intensity. A new type of mirror can deform itself so as to correct this unwanted deformation. It will be presented at the Optatec trade fair in Frankfurt from May 20 to 22....

Thermoelectric materials can turn a temperature difference into an electric voltage. Among their uses in a variety of specialized applications: generating power on space probes and cooling seats in fancy cars....

The University of Chicago's Institute for Molecular Engineering will lead a team of researchers from five universities in an ambitious five-year, $6.75 million project to create a new class of quantum devices that will allow communication among quantum computers....

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