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.....»»
Graphene drum: A new phonon laser design
Professor Konstantin Arutyunov of the HSE Tikhonov Moscow Institute of Electronics and Mathematics (MIEM HSE), together with Chinese researchers, has developed a graphene-based mechanical resonator, in which coherent emission of sound energy quanta,.....»»
Researchers realize coherent storage of light over one hour
Remote quantum distribution on the ground is limited because of the loss of photons in optical fibers. One solution for remote quantum communication lies in quantum memories: photons are stored in long-lived quantum memory (quantum flash drive) and t.....»»
Dalian coherent light source reveals oxygen production from three-body photodissociation of water
The provenance of oxygen on Earth and other solar planetary bodies is a fundamental research issue. It is widely accepted that the prebiotic pathway of oxygen production in the Earth's primitive atmosphere was via vacuum ultraviolet (VUV) photodissoc.....»»
Researchers use a nanoscale synthetic antiferromagnet to toggle nonlinear spin dynamics
Researchers at the University of California, Riverside, have used a nanoscale synthetic antiferromagnet to control the interaction between magnons—research that could lead to faster and more energy-efficient computers......»»
Scientists make further step towards understanding dark energy
The extended Baryon Oscillation Spectroscopic Survey (eBOSS) collaboration has released its latest scientific results. These results include two studies on dark energy led by Prof. Zhao Gongbo and Prof. Wang Yuting, respectively, from National Astron.....»»
Scientists more confident projecting ENSO changes under global warming
The El Niño-Southern Oscillation (ENSO) is an irregular periodic variation in winds and sea surface temperatures (SSTs) over the tropical eastern Pacific Ocean. It may lead to extreme weather events across the globe due to its ability to change glob.....»»
The relationship between ENSO and Indian summer monsoon rainfall is re-strengthening
In the 1930s, English climatologist Sir Gilbert Walker successfully predicted Indian summer monsoon rainfall (ISMR) based on the relationship between Southern Oscillation and ISMR connected by what was later called Walker circulation, which is regard.....»»
Distinctive MJO activity during 2015/2016 super El Nino
El Niño-Southern Oscillation (ENSO) is one of the most prominent ocean-atmosphere interactions that varies year-to-year. This process exerts significant impacts on global weather and climate. El Niño is the warm phase of ENSO, which can be strong,.....»»
Moving Digital Transformation Efforts Forward, With an Eye to CX
The single most important element of successful transformation is a coherent and well-defined enterprise strategy — not a specific customer experience strategy. Continue reading........»»
Scientists Get Closer To Redefining the Length of a Second
Scientists are inching one step closer toward redefining the length of a second. NPR reports: Atomic clocks, which look like a jumble of lasers and wires, work by tapping into the natural oscillation of atoms, with each atom "ticking" at a different.....»»
Method for determining electron beam properties could help future ultraviolet, X-ray synchrotron light sources
The detected intensity from two coherent point-like light sources depends on their relative positions. It is a well-known phenomenon called optical interference. In general, the intensity can range from zero (destructive interference) to some maximum.....»»
Ultrafast intra-atom motion tracked using synchrotron radiation
Scientists in Japan have observed and interfered with the ultrafast motion of electron movement inside of a Xenon atom using the coherent pairs of short light waves in synchrotron radiation. Xenon, consisting of a nucleus surrounded by five nested sh.....»»
Scientists propose novel self-modulation scheme in seeded free-electron lasers
Seeded free-electron lasers (FELs), which use frequency up-conversion of an external seed laser to improve temporal coherence, are considered ideal for supplying stable, fully coherent, soft X-ray pulses. However, the requirement for an external seed.....»»
Apparent Atlantic warming cycle likely an artifact of climate forcing
Volcanic eruptions, not natural variability, were the cause of an apparent "Atlantic Multidecadal Oscillation," a purported cycle of warming thought to have occurred on a timescale of 40 to 60 years during the pre-industrial era, according to a team.....»»
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.....»»