A method to compute the Rényi entanglement entropy in auxiliary-field quantum Monte Carlo simulations
Entanglement is a widely studied quantum physics phenomenon, in which two particles become linked in such a way that the state of one affects the state of another, irrespective of the distance between them. When studying systems comprised of several.....»»
Strictly no dancing: Researchers discover "new molecular design rules"
Since the discovery of quantum mechanics more than a hundred years ago, it has been known that electrons in molecules can be coupled to the motion of the atoms that make up the molecules. Often referred to as molecular vibrations, the motion of atoms.....»»
Physicist achieve milestone in quantum simulation with circular Rydberg qubits
A team of researchers from the 5th Institute of Physics at the University of Stuttgart is making important progress in the field of quantum simulation and quantum computing based on Rydberg atoms by overcoming a fundamental limitation: the limited li.....»»
Study reveals flaw in long-accepted approximation used in water simulations
Computational scientists at the Department of Energy's Oak Ridge National Laboratory have published a study in the Journal of Chemical Theory and Computation that questions a long-accepted factor in simulating the molecular dynamics of water: the 2-f.....»»
Do you need a dentist visit every 6 months? That filling? The data is weak
Getting evidence-based care may be like pulling teeth, researchers suggest. Enlarge (credit: Getty | Julian Stratenschulte) The field of dentistry is lagging on adopting evidence-based care and, as such, is rife with ove.....»»
Researchers establish commercially viable process for manufacturing with promising new class of metals
Nanostructured high entropy alloys—metals made from a chaotic mix of several different elements—show a lot of promise for use in industries such as aerospace and automotive because of their strength and stability at high temperatures compared wit.....»»
The quantum theory of gravitation, effective field theories and strings: Past and present
Gravity is one of four fundamental interactions. The most precise description of this force is still provided by Einstein's General Theory of Relativity, published in 1915, an entirely classical theory. This description sets gravity apart from the ot.....»»
A guide for early-career researchers in computational science
In recent years, a growing number of students have embraced scientific computation as an integral component of their graduate research. Yet since many of them are new to the field, they often have little to no coding experience, or any prior knowledg.....»»
Smart labs for bespoke synthesis of nanomaterials are emerging
In the early 20th century, the development of a catalyst for ammonia synthesis by the Haber-Bosch method took more than 10,000 experiments before it was successful. The development of new materials is a time-consuming and costly process from design t.....»»
New super-pure silicon chip opens path to powerful quantum computers
Researchers at the Universities of Melbourne and Manchester have invented a breakthrough technique for manufacturing highly purified silicon that brings powerful quantum computers a big step closer......»»
Hackers discover how to reprogram NES Tetris from within the game
New method could help high-score chasers trying to avoid game-ending crashes. Enlarge / I can see the code that controls the Tetri-verse! (credit: Aurich Lawson) Earlier this year, we shared the story of how a classic NE.....»»
Study reveals rockburst processes, characteristics and triggering mechanisms
Field observations have revealed that highly stressed D-shape tunnels experience sidewall rockburst triggered by impact loads stemming from rock blasting or other mining-related dynamic disturbances......»»
Study of new method used to preserve privacy with US census data suggests accuracy has suffered
A small team of political scientists, statisticians and data scientists from Harvard University, New York University, and Yale University, has found that by switching to a new method to better protect privacy, the U.S. Census Department has introduce.....»»
An Old Abstract Field of Math Is Unlocking the Deep Complexity of Spacecraft Orbits
Mathematicians think abstract tools from a field called symplectic geometry might help with planning missions to far-off moons and planets......»»
Saturday Citations: Parrots on the internet; a map of human wakefulness; the most useless rare-earth element
We field a torrent of science news updates every week and on Saturday morning, we highlight three or four of them based on the observed preferences of a panel of dogs as shown by the Paired-Stimulus Preference Assessment, a standardized evaluation of.....»»
New quantum sensing scheme could lead to enhanced high-precision nanoscopic techniques
Researchers from the University of Portsmouth have unveiled a quantum sensing scheme that achieves the pinnacle of quantum sensitivity in measuring the transverse displacement between two interfering photons......»»
Solar orbiter takes a mind-boggling video of the sun
You've seen the sun, but you've never seen the sun like this. This single frame from a video captured by ESA's Solar Orbiter mission shows the sun looking very fluffy! You can see feathery, hair-like structures made of plasma following magnetic field.....»»
Ice shelves fracture under weight of meltwater lakes, study shows
When air temperatures in Antarctica rise and glacier ice melts, water can pool on the surface of floating ice shelves, weighing them down and causing the ice to bend. Now, for the first time in the field, researchers have shown that ice shelves don't.....»»
Physicists pioneer new quantum sensing platform
Quantum sensors detect the smallest of environmental changes—for example, an atom reacting to a magnetic field. As these sensors "read" the unique behaviors of subatomic particles, they also dramatically improve scientists' ability to measure and d.....»»
Physicists arrange atoms in close proximity, paving way for exploring exotic states of matter
Proximity is key for many quantum phenomena, as interactions between atoms are stronger when the particles are close. In many quantum simulators, scientists arrange atoms as close together as possible to explore exotic states of matter and build new.....»»
Team evaluates agricultural management practices in new nitrous oxide accounting method
As greenhouse gases go, nitrous oxide (N2O) is a doozy. With a global warming potential 273 times that of carbon dioxide, mitigating N2O could make a big difference. But before mitigation can happen, it's important to understand where the compound is.....»»