Current Atomic Clocks News and Events

Current Atomic Clocks News and Events, Atomic Clocks News Articles.
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Twist-n-Sync: Skoltech scientists use smartphone gyroscopes to sync time across devices
Skoltech researchers have designed a software-based algorithm for synchronizing time across smartphones that can be used in practical tasks requiring simultaneous measurements. This algorithm can essentially help turn several devices into a full-fledged network of sensors. (2021-02-22)

Big galaxies steal star-forming gas from their smaller neighbours
In research published today, astronomers have discovered that large galaxies are stealing the material that their smaller counterparts need to form new stars. (2021-02-22)

Atomic nuclei in the quantum swing
The extremely precise control of nuclear excitations opens up possibilities of ultra-precise atomic clocks and powerful nuclear batteries. (2021-02-19)

Investigating the wave properties of matter with vibrating molecules
The working group led by Prof. Stephan Schiller, Ph.D. from Heinrich Heine University Düsseldorf (HHU) has used a novel, high-precision laser spectroscopic experiment to measure the internal vibration of the simplest molecule. This allowed the researchers to investigate the wave character of the motion of atomic nuclei with unprecedented accuracy. They present their findings in the current edition of Nature Physics. (2021-02-18)

Understanding cellular clock synchronization
In humans, the disruption of circadian clocks is the cause of many metabolic diseases. Thanks to an observation tool based on bioluminescence, a research (UNIGE) were able to demonstrate that cells that compose a particular organ can be in-phase, even in the absence of the central brain clock. Indeed, the scientists managed to restore circadian function in the liver in completely arrhythmic mice, demonstrating that neurons are not unique in their ability to coordinate. (2021-02-17)

Dual character of excitons in the ultrafast regime: atomic-like or solid-like?
Researchers at Politecnico di Milano in collaboration with the Institute of Photonics and Nanotechnologies IFN-CNR and a theory group from the Tsukuba University (Japan) and the Max Plank Institute for the Structure and Dynamics of matter (Hamburg, Germany), have discovered that an exciton can simultaneously adopt two radically different characters when it isstimulated by light. (2021-02-15)

Move over heavy goggles, here come the ultra-high refractive index lenses
POSTECH professor Junsuk Rho's research team develops a transparent silicon without visible light loss by controlling the silicon atomic structure. (2021-02-14)

Scientists manipulate magnets at the atomic scale
Fast and energy-efficient future data processing technologies are on the horizon after an international team of scientists successfully manipulated magnets at the atomic level. Physicist Dr Rostislav Mikhaylovskiy from Lancaster University said: ''With stalling efficiency trends of current technology, new scientific approaches are especially valuable. Our discovery of the atomically-driven ultrafast control of magnetism opens broad avenues for fast and energy-efficient future data processing technologies essential to keep up with our data hunger.'' (2021-02-12)

Tuning the circadian clock, boosting rhythms may be key to future treatments and medicines
Subconsciously, our bodies keep time for us through an ancient means - the circadian clock. A new University of California, Irvine-led article reviews how the clock controls various aspects of homeostasis, and how organs coordinate their function over the course of a day. (2021-02-11)

Two-phase material with surprising properties
Some materials can couple electrical and mechanical properties - this can lead to astonishing effects: New materials have been developed, consisting of both crystalline and amorphous regions. In these special polymers, the electro-mechanical coupling suddenly disappers - scientits at TU Wien have found out how. (2021-02-08)

How metal atoms can arrange themselves on an insulator
In order to produce tiny electronic memories or sensors in future, it is essential to be able to arrange individual metal atoms on an insulating layer. Scientists at Bielefeld University's Faculty of Chemistry have now demonstrated that this is possible at room temperature: molecules of the metal-containing compound molybdenum acetate form an ordered structure on the insulator calcite without jumping to other positions or rotating. Their findings have been presented in the Nature Communications journal. (2021-02-04)

Imaging technique provides link to innovative products
A study led by University of Georgia researchers announces the successful use of a new nanoimaging technique that will allow researchers to test and identify two-dimensional materials (2021-02-04)

Solving complex physics problems at lightning speed
A calculation so complex that it takes twenty years to complete on a powerful desktop computer can now be done in one hour on a regular laptop. Physicist Andreas Ekström at Chalmers University of Technology, together with international research colleagues, has designed a new method to calculate the properties of atomic nuclei incredibly quickly. (2021-02-01)

Paving the way for effective field theories
This special issue, published in EPJ A, presents a coherent collection of work by theoretical experts from around the world regarding the use of effective field theories. Several unanswered questions are addressed and clarified, leading to detailed assessments of the philosophical foundations of effective field theories. (2021-02-01)

Researchers reveal in-situ manipulation of active Au-TiO2 interface
An international joint research team from the Shanghai Advanced Research Institute of the Chinese Academy of Sciences, along with Zhejiang University and the Technical University of Denmark, reported an in-situ strategy to manipulate interfacial structure with atomic precision during catalytic reactions. (2021-01-28)

VCU technology could upend DNA sequencing for diagnosing certain DNA mutations
Doctors are increasingly using genetic signatures to diagnose diseases and determine the best course of care, but using DNA sequencing and other techniques to detect genomic rearrangements remains costly or limited in capabilities. However, an innovative breakthrough developed by researchers at Virginia Commonwealth University Massey Cancer Center and the VCU Department of Physics promises to diagnose DNA rearrangement mutations at a fraction of the cost with improved accuracy. (2021-01-27)

Researchers use car collisions with deer to study mysterious animal-population phenomena
By parsing data on weather, deer populations and deer-vehicle collisions in Wisconsin, investigators at the University of Kansas show spatial synchrony could be driving population cycles, rather than the reverse. (2021-01-27)

Scientists publish a blueprint to apply artificial intelligence to extend human longevity
The international team of artificial intelligence experts and medical doctors propose a framework for the application of next-generation AI to extend human longevity (2021-01-27)

Tungsten-substituted vanadium oxide breathes fresh air into catalyst technology
Tokyo, Japan - Researchers from Tokyo Metropolitan University have created a new tungsten-substituted vanadium oxide catalyst for breaking down harmful nitrogen oxides in industrial exhaust. Their new catalyst material works at lower temperatures and does not suffer major drops in performance when processing ''wet'' exhaust, resolving a major drawback in conventional vanadium oxide catalysts. They found that the unaggregated dispersal of atomic tungsten in the original crystal structure plays a key role in how it functions. (2021-01-26)

Beauty in imperfection: How crystal defects can help convert waste heat into electricity
Half-Heusler Ni-based alloys are thermoelectric materials with the potential for converting waste heat into electricity. However, the origin of their impressive conversion efficiency is not entirely clear. In a recent study, scientists from Japan and Turkey have attempted to uncover the role that Ni defects have in the crystal structure of these alloys and how their desirable thermoelectric properties are a consequence of small changes in strain around defective sites. (2021-01-26)

Nuclear physicist's voyage towards a mythical island
Theories were introduced as far back as the 1960s about the possible existence of superheavy elements. Their most long-lived atomic nuclei could give rise to a so-called ''island of stability'' far beyond the element uranium. However, a new study, led by nuclear physicists at Lund University, shows that a 50-year-old nuclear physics manifesto must now be revised. (2021-01-26)

Single atoms as a catalyst: Surprising effects ensue
Catalysts are getting smaller - ''single-atom'' catalysts are the logical end point of this downsizing. However, individual atoms can no longer be described using the rules developed from larger pieces of metal, so the rules used to predict which metals will be good catalysts must be revamped - this has now been achieved at TU Wien. As it turns out, single atom catalysts based on much cheaper materials might be even more effective. (2021-01-22)

Crystal close up
Two novel techniques, atomic-resolution real-time video and conical carbon nanotube confinement, allow researchers to view never-before-seen details about crystal formation. The observations confirm theoretical predictions about how salt crystals form and could inform general theories about the way in which crystal formation produces different ordered structures from an otherwise disordered chemical mixture. (2021-01-21)

Alpha particles lurk at the surface of neutron-rich nuclei
Scientists from an international collaboration have found evidence of alpha particles at the surface of neutron-rich heavy nuclei, providing new insights into the structure of neutron stars, as well as the process of alpha decay. (2021-01-21)

Squeezing a rock-star material could make it stable enough for solar cells
A promising lead halide perovskite is great at converting sunlight to electricity, but it breaks down at room temperature. Now scientists have discovered how to stabilize it with pressure from a diamond anvil cell. The required pressure is well within the reach of industrial manufacturing requirements. (2021-01-21)

Bringing atoms to a standstill: NIST miniaturizes laser cooling
Scientists at the National Institute of Standards and Technology (NIST) have miniaturized the optical components required to cool atoms down to a few thousandths of a degree above absolute zero, the first step in employing them on microchips to drive a new generation of super-accurate atomic clocks, enable navigation without GPS, and simulate quantum systems. (2021-01-21)

Scientists reveal structure of plants' energy generators
Researchers have revealed the first atomic structures of the respiratory apparatus that plants use to generate energy, according to a study published today in eLife. (2021-01-19)

What stops flows in glassy materials?
Researchers from the Institute of Mechanics of the Chinese Academy of Sciences and Hong Kong University of Science and Technology recently conducted experimental studies for the first time on glassy systems composed of nonspherical particles. (2021-01-17)

Conductive nature in crystal structures revealed at magnification of 10 million times
In groundbreaking materials research, a team led by University of Minnesota Professor K. Andre Mkhoyan has made a discovery that blends the best of two sought-after qualities for touchscreens and smart windows--transparency and conductivity. (2021-01-15)

Researchers resolve controversy over energy gap of Van der Waals material
Scanning tunneling microscopy and spectroscopy measurements revealed that the energy gap of chromium tribromide is around 0.3 electron volt (eV), which is much smaller than optical measurements, which ranged from 1.68 to 2.1 eV. (2021-01-15)

New method makes better predictions of material properties using low quality data
By combining large amounts of low-fidelity data with smaller quantities of high-fidelity data, nanoengineers from the Materials Virtual Lab at UC San Diego have developed a new machine learning method to predict the properties of materials with more accuracy than existing models. Crucially, their approach is also the first to predict the properties of disordered materials--those with atomic sites that can be occupied by more than one element, or can be vacant. (2021-01-14)

Quantum computers to study the functioning of the molecules of life
A breakthrough that has implications for molecular biology, pharmacology and nanotechnologies. The fields of application are many. Identifying the mechanisms behind neurodegenerative processes in some proteins, for example, can help limit their proliferation. Understanding how a protein takes on a certain shape can open the way to use the nanomachines that nature has designed to cut, edit or block damaged or defective genes. Their study was published in the international academic journal Physical Review Letters (2021-01-14)

Limits of atomic nuclei predicted
Novel calculations have enabled the study of nearly 700 isotopes between helium and iron, showing which nuclei can exist and which cannot. In an article published in Physical Review Letters, scientists from TU Darmstadt, the University of Washington, the Canadian laboratory TRIUMF, and the University of Mainz report how they simulated for the first time using innovative theoretical methods a large region of the chart of nuclides based on the theory of the strong interaction. (2021-01-13)

Catalysts: worth taking a closer look
Metal surfaces play a role as catalysts for many important applications - from fuel cells to the purification of car exhaust gases. However, their behaviour is decisively affected by oxygen atoms incorporated into the surface. This phenomenon has been known for a long time, but until now it has been impossible to precisely investigate the role of oxygen in complex surfaces point by point in order to understand the chemical background at the atomic level. (2021-01-13)

Study shows tweaking one layer of atoms on a catalyst's surface can make it work better
When an LNO catalyst with a nickel-rich surface carries out a water-splitting reaction, its surface atoms rearrange from a cubic to a hexagonal pattern and its efficiency doubles. Deliberately engineering the surface to take advantage of this phenomenon offers a way to design better catalysts. (2021-01-11)

High-speed atomic force microscopy visualizes cell protein factories
Factor-pooling by ribosomes caught on video using state-of-art high-speed atomic force microscopy technology. (2021-01-08)

Bacteria can tell the time
New research reveals that bacteria have internal clocks that align with the 24-hour cycle of life on Earth. (2021-01-08)

Machine-learning models of matter beyond interatomic potentials
The calculation of machine learning models that can predict properties beyond the interactions between atoms might eventually allow integrated ML models to replace costly electronic structure calculations entirely. In the paper Learning the electronic density of states in condensed matter researchers take a step in that direction with a new ML framework for predicting the electronic density of states. The technique has already been applied to dense amorphous silicon in a Nature paper out today. (2021-01-07)

High-flux table-top source for femtosecond hard X-ray pulses
Researchers at the Max Born Institute (MBI) in Berlin have now accomplished a breakthrough in table-top generation of femtosecond X-ray pulses by demonstrating a stable pulse train at kilohertz repetition rate with a total flux of some 10^12 X-ray photons per second. (2021-01-07)

Researchers question fundamental study on the Kondo effect
In 1998, spectroscopic studies on the Kondo effect using scanning tunnelling microscopy were published, which are considered ground-breaking and have triggered countless others of a similar kind. Many of these studies may have to be re-examined now that researchers from Jülich, Germany have shown that the Kondo effect cannot be proven beyond doubt by this method. Instead, another phenomenon is creating precisely the spectroscopic ''fingerprint'' that was previously attributed to the Kondo effect. (2021-01-07)

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