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.....»»
Study unveils intrinsic upper-ocean temperature variability in tropical Indian Ocean
The Indian Ocean dipole (IOD) is an irregular oscillation of sea surface temperatures in which the western Indian Ocean becomes alternately warmer and then colder than the eastern part of the ocean......»»
How Pacific decadal oscillation modulates the El Niño-related eastward transport anomaly
The equatorial intermediate currents (EICs) contribute to global circulation, climate variability, and distributions of heat, water mass, and biogeochemical quantities......»»
Impacts of El Niño–Southern Oscillation diversity on wintertime PM2.5 pollution in four Chinese megacities
Since 2013, China has implemented a series of emission reduction policies, such as the "Clean Air Action" and the "Blue Sky Protection Campaign." Accordingly, the concentrations of air pollutants have generally decreased significantly. However, PM2.5.....»»
High-power laser being constructed for a new experimental facility
Lawrence Livermore National Laboratory's decades of leadership in developing high-energy lasers is being tapped to provide a key component of a major upgrade to SLAC National Accelerator Laboratory's Linac Coherent Light Source (LCLS)......»»
Magnetic excitations could provide information transfer without heat loss
Just as electrons flow through an electrical conductor, magnetic excitations can travel through certain materials. Such excitations, known in physics as "magnons" in analogy to the electron, could transport information much more easily than electrica.....»»
Self-sustained diverter oscillation mechanism identified in fusion plasma experiment
To harness the forces that power the sun to produce substantial clean energy on Earth, researchers heat fuel to such a high temperature that atoms melt into electrons and nuclei to form a hot, gaseous soup called plasma. Roughly 20 times the temperat.....»»
Research demonstrates a new technique for improving long-distance quantum key distribution in a real-world field
An experiment, performed by Istituto Nazionale di Ricerca Metrologica (INRIM) on 200 km of the Italian Quantum Backbone, in collaboration with Toshiba Europe, shows that coherent laser interferometry considerably improves the performances of quantum.....»»
Coherent interstellar magnetic field detected
Magnetic fields are the essential, but often "secret" ingredients of the interstellar medium and the process of making stars. The secrecy shrouding interstellar magnetic fields can be attributed to the lack of experimental probes......»»
Surfing the spin wave: New method to measure spin waves brings us one step closer to spin superfluidity
Spin waves, a change in electron spin that propagates through a material, could fundamentally change how devices store and carry information. These waves, also known as magnons, don't scatter or couple with other particles. Under the right conditions.....»»
Magnons vs electrons: A new spin on computer processing
In 1965, Gordon Moore of Intel predicted that microprocessors would double in speed and capacity every couple of years. This prediction, now known as "Moore's Law," has with some modification in 1975 been reliably prophetic until now. We're fast appr.....»»
Creating coherent device motion based on coordinated microscopic movements
Thanks to work by scientists from the RIKEN Center for Emergent Matter Science and collaborators, scientists are closer to creating devices that can use microscopic movements in a coordinated way to create coherent motion on a macroscopic scale. This.....»»
Researchers observe localized phonon modes at a heterointerface
Phonons—the quasiparticle describing lattice vibrations in solids—directly dictates various properties of solid state systems, such as the thermal conductivity, electron mobility, structural stability and conventional superconductivity. Since in.....»»
More inclusive and coherent global action on deforestation urgently needed
Deforestation and forest degradation, mainly due to agricultural expansion, lead to the loss of roughly 9 million hectares of natural forest per year, say a team of political and environmental researchers, including members from the University of Oxf.....»»
Researchers announce photon-phonon breakthrough
New research by a City College of New York team has uncovered a novel way to combine two different states of matter. For one of the first times, topological photons—light—has been combined with lattice vibrations, also known as phonons, to manipu.....»»
Magnon blocking effect and magnonic skin effect shown in antiferromagnetically coupled heterojunction
Spin waves, or magnons, as the elementary excitation of the magnetic system, can transfer spin angular momentum, which provides wide prospects for the Non-volatile, low-energy-consumption, high-speed and small-size microelectronic devices in the post.....»»
Researchers create powerful quantum source with meta-lens array
Researchers for the first time have demonstrated a quantum light source based on a meta-lens array. The approach offers a promising platform for both high-dimensional photon entanglement and the coherent control of multiple photons, making it suitabl.....»»
Dalian Coherent Light Source reveals strong isotope effects in photodissociation of water isotopologue
Recently, a research group led by Prof. Yuan Kaijun and Prof. Yang Xueming from the Dalian Institute of Chemical Physics (DICP) of the Chinese Academy of Sciences revealed strong isotope effects in photodissociation of the water isotopologue (HOD) us.....»»
The era of single-spin color centers in silicon carbide is approaching
Prof. Li Chuanfeng, Prof. Xu Jinshi and their colleagues from Prof. Guo Guangcan's group at the University of Science and Technology of China (USTC) of the Chinese Academy of Sciences (CAS), realized the high-contrast readout and coherent manipulatio.....»»
The paradox of a free-electron laser without the laser
A new way of producing coherent light in the ultra-violet spectral region, which points the way to developing brilliant table-top X-ray sources, has been produced in research led at the University of Strathclyde......»»
The next generation of information processing is through coherent gate operations
Many of us swing through gates every day—points of entry and exit to a space like a garden, park or subway. Electronics have gates too. These control the flow of information from one place to another by means of an electrical signal. Unlike a garde.....»»