Coherent oscillation between phonons and magnons
Two different waves with the same frequency and wavelengths can be coupled, so that the amplitude alternates periodically between the two to form a phenomenon known as a coherent beating oscillation. The process can be observed often with a coupled p.....»»
Climate network detects precursor of Pacific Decadal Oscillation phase transition
Pacific Decadal Oscillation (PDO), one of the main internal decadal climate variabilities, has substantial impacts on climate and environment......»»
World"s first video of a space-time crystal
A German-Polish research team has succeeded in creating a micrometer-sized space-time crystal consisting of magnons at room temperature. With the help of the scanning transmission X-ray microscope Maxymus at Bessy II at Helmholtz Zentrum Berlin, they.....»»
At last, climate science may be able to predict tropical Atlantic weather better
El Niño Southern Oscillation or ENSO, an anomalous warming of the surface waters in the tropical Pacific Ocean, is famous for producing months-long unusual weather patterns across the globe......»»
Future ocean warming boosts tropical rainfall extremes
The El Niño-Southern Oscillation (ENSO) is the most energetic naturally occurring year-to-year variation of ocean temperature and rainfall on the planet. The irregular swings between warm and wet El Niño conditions in the equatorial Pacific and the.....»»
A new quantum switch for electronics
A Russian physicist and his international colleagues studied a quantum point contact (QCP) between two conductors with external oscillating fields applied to the contact. They found that, for some types of contacts, an increase in the oscillation fre.....»»
Direct coherent multi-ink printing of fabric supercapacitors
Fiber-shaped supercapacitors are a desirable high-performance energy storage technology for wearable electronics. The traditional method for device fabrication is based on a multistep approach to construct energy devices, which can present challenges.....»»
Dalian Coherent Light Source reveals origin of interstellar disulfur
Studying the creation and evolution of sulfur-containing compounds in outer space is essential for understanding interstellar chemistry. CS2 is believed to be the most important molecule in comet nuclei, interstellar dust, or ice cores. It could prod.....»»
Compelling evidence of neutrino process opens physics possibilities
The COHERENT particle physics experiment at the Department of Energy's Oak Ridge National Laboratory has firmly established the existence of a new kind of neutrino interaction. Because neutrinos are electrically neutral and interact only weakly with.....»»
Observing chiral edge states in gapped nanomechanical graphene
Edge states are an emerging concept in physics and have been explored as an efficient strategy to manipulate electrons, photons and phonons for next-generation hybrid electro-optomechanical circuits. Scientists have used gapless chiral edge states in.....»»
Multidimensional coherent spectroscopy reveals triplet state coherences in cesium lead-halide perovskite nanocrystals
Advanced optoelectronics require materials with newly engineered characteristics. Examples include a class of materials named metal-halide perovskites that have tremendous significance to form perovskite solar cells with photovoltaic efficiencies. Re.....»»
Rethinking urban planning for sub-Saharan African cities
For his thesis project at EPFL, Armel Kemajou studied the peri-urban areas of Lomé, Togo, and Yaoundé, Cameroon, where populations are expected to double in 20 years. He observed construction strategies that reflected coherent individual and collec.....»»
Discovery of quantum behavior in insulators suggests possible new particle
In a surprising discovery, Princeton physicists have observed an unexpected quantum behavior in an insulator made from a material called tungsten ditelluride. This phenomenon, known as quantum oscillation, is typically observed in metals rather than.....»»
Apple Researching Keyboards With Adaptive Displays on Each Key
Apple is researching keyboards with small displays on the keys to dynamically change the label on each key, according to a newly-granted patent filing. From a report: The filing is titled "Electronic devices having keys with coherent fiber bundles" a.....»»
Information transport in antiferromagnets via pseudospin-magnons
A team of researchers from the Technical University of Munich, the Walther-Meissner-Institute of the Bavarian Academy of Sciences and Humanities, and the Norwegian University of Science and Technology in Trondheim has discovered an exciting method fo.....»»
High-brightness source of coherent light spanning from the UV to THz
Analytical optical methods are vital to our modern society as they permit the fast and secure identification of substances within solids, liquids or gases. These methods rely on light interacting with each of these substances differently at different.....»»