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.....»»
Ramsey Theory Extracts Order from Chaos when Sorting through Confusing Arrangements of Numbers
Mathematician Frank Ramsey showed how to discover coherent patterns among a multitude of number groupings.....»»
Truly chiral phonons observed in three-dimensional materials for the first time
Chirality is the breaking of reflection and inversion symmetries. Simply put, it is when an object's mirror images cannot be superimposed over each other. A common example are your two hands—while mirror images of each other, they can never overlap.....»»
Transition metal-doped iron oxide nanocrystals modulate MRI contrast performance
FDA-approved iron oxide nanocrystals (IONs) as negative magnetic resonance imaging (MRI) contrast agents are encountering challenges because of their low relaxation rate and coherent ferromagnetism. Although metal doping has been found as an efficien.....»»
Scientists warn of a rare third-year La Niña
Southern Oscillation (ENSO) is an irregular periodic variation in winds and sea surface temperatures over the tropical eastern Pacific Ocean that affects the climate of much of the tropics and subtropics. This natural phenomenon is important to study.....»»
Trapping polaritons in an engineered quantum box
Australian researchers have engineered a quantum box for polaritons in a two-dimensional material, achieving large polariton densities and a partially "coherent" quantum state......»»
The coherent simulation of a quantum phase transition in a programmable 2,000 qubit Ising chain
Quantum computers have the potential to outperform classical computers on several complex tasks, yet many challenges will need to be overcome before they reach their full potential. In the meantime, physicists and computer scientists have been trying.....»»
Google Pixel 7 smartphone & Pixel Watch debut
The Google Pixel 7, Pixel 7 Pro, and Pixel Watch have been officially announced as parts of a coherent product ecosystem that all works together for the user.Google shares details about its latest Pixel productsUnlike Apple, Google shared a preview o.....»»
Optimized photoacoustic cell helps reduce effects of coherent and incoherent noises
A team from the Hefei Institutes of Physical Science of the Chinese Academy of Sciences has developed a high-sensitivity differential Helmholtz photoacoustic cell and successfully applied it to methane detection......»»
Researchers use multiple lasers to create reproducible coherent light structures at wavelength level
Scientists from Japan have employed theoretical calculations to model the optical radiation force distribution induced by an arbitral light pattern including an interference pattern. Based on the simulations, they were able to fabricate nano-sized st.....»»
Apple Watch running metrics: How to use the new Workout features in watchOS 9
A wide range of valuable new running features comes with watchOS 9. From heart rate zones and stride length, ground contact time to vertical oscillation, and new features like ghost racing your personal best and creating custom workouts, here’s a.....»»
Scientists see spins in a 2D magnet
All magnets—from the simple souvenirs hanging on your refrigerator to the disks that give your computer memory to the powerful versions used in research labs—contain spinning quasiparticles called magnons. The direction one magnon spins can influ.....»»
Single-shot ultrafast multiplexed coherent diffraction imaging method
In a study published in Photonics Research, researchers from Shanghai Institute of Optics and Fine Mechanics (SIOM) of the Chinese Academy of Sciences (CAS) has proposed a new scheme for single-shot ultrafast multimodal coherent diffraction imaging t.....»»
Novel approach for generating coherent and ultrashort soft X-ray pulses
A research team from Shanghai Advanced Research Institute of the Chinese Academy of Sciences has proposed an external seeding mechanism, termed echo-enabled harmonic cascade (EEHC), for generating coherent and ultrashort soft X-ray pulses......»»
SiFive enhances popular X280 processor IP to meet accelerated demand for vector processing
SiFive announced the release of the latest version of its SiFive Intelligence X280 processor, which introduces significant new features including scalability up to a 16-core cache-coherent complex, WorldGuard trusted protection, and a new interface a.....»»
Apple Watch running metrics: Hands-on with new Workout features in watchOS 9
A wide range of valuable new running features comes with watchOS 9. From heart rate zones and stride length, ground contact time to vertical oscillation, and new features like ghost racing your personal best and creating custom workouts, here’s a.....»»
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.....»»
Generating ultra-violet lasers with near-infrared light through "domino upconversion" of nanoparticles
Strong and coherent ultraviolet light emission devices have enormous medical and industrial application potential, but generating ultraviolet light emission in an effective way has been challenging. Recently, a collaborative research team co-led by r.....»»
Quasi-periodic oscillation detected in blazar PKS 0405-385
By analyzing the historical light curve of blazar PKS 0405-385 from NASA's Fermi spacecraft, Chinese astronomers have detected quasi-periodic oscillation from this source. The discovery, presented in a paper published May 5 on arXiv.org, could shed m.....»»
New research on Pacific climate pattern may lead to improved cyclone forecasting
El Niño-Southern Oscillation (ENSO), the climate pattern involving warming or cooling sea surface temperatures in the Pacific, has immense influence on the formation of tropical cyclones globally. A new study involving Florida Tech shows that in the.....»»
Linear polarization holography
In conventional holography, the hologram is formed by recording the interference fringes of two coherent beams using a photosensitive material. The amplitude and phase information of the original signal wave can be reconstructed correctly when readin.....»»