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.....»»
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.....»»
Good vibrations: Low-energy lasers induce atomic excitation in semiconductor materials
Semiconductors are a cornerstone of next-generation technology, so a new method to excite atoms in semiconductor materials is likely to excite a broad range of researchers and industries as well......»»
Significant new discovery in teleportation research: Noise can improve the quality of quantum teleportation
Researchers have succeeded in conducting an almost perfect quantum teleportation despite the presence of noise that usually disrupts the transfer of quantum state. The results have been published in the journal Science Advances......»»
Study unveils 3D printing PQD-polymer architectures at room temperature
A technology enabling the fabrication of intricate three-dimensional (3D) quantum dot (QD)-based structures at room temperature has been developed......»»
Weak magnetic field may have supported diversification of life on Earth
An unusual reduction in the strength of Earth's magnetic field between 591 and 565 million years ago coincided with a significant increase in the oxygen levels in the atmosphere and oceans, according to a paper published in Communications Earth & Env.....»»
Researchers detect toxic chemicals in aquatic organisms with new AI method
Swedish researchers at Chalmers University of Technology and the University of Gothenburg have developed an AI method that improves the identification of toxic chemicals—based solely on knowledge of the molecular structure......»»
New work reveals the "quantumness" of gravity
Gravity is part of our everyday life. Still, the gravitational force remains mysterious: to this day we do not understand whether its ultimate nature is geometrical, as Einstein envisaged, or governed by the laws of quantum mechanics......»»
Researchers build new device that is a foundation for quantum computing
Scientists led by the University of Massachusetts Amherst have adapted a device called a microwave circulator for use in quantum computers, allowing them for the first time to precisely tune the exact degree of nonreciprocity between a qubit, the fun.....»»
Generating graph states of atomic ensembles via photon-mediated entanglement
Graph states, a class of entangled quantum states that can be represented by graphs, have been the topic of numerous recent physics studies, due to their intriguing properties. These unique properties could make them particularly promising for quantu.....»»
Scientists show that there is indeed an "entropy" of quantum entanglement
Bartosz Regula from the RIKEN Center for Quantum Computing and Ludovico Lami from the University of Amsterdam have shown, through probabilistic calculations, that there is indeed, as had been hypothesized, a rule of entropy for the phenomenon of quan.....»»
Building a strong cloud security posture
In this Help Net Security video, David Kellerman, Field CTO at Cymulate, discusses how cloud security still seems to lag even as the cloud grows in popularity and usage. Many leaders are unaware that they need to secure the cloud the same way they wo.....»»
Behind the wheel of CXC’s $600,000 off-road racing simulator
CXC Simulations wanted to build something special for a cruise liner. Enlarge / CXC Simulations needed to come up with something special for Norwegian Cruise Lines, so it built an off-road racing simulator. (credit: CXC Simulatio.....»»
Engineered increase in mesophyll conductance improves photosynthetic efficiency in field trial
It is possible to engineer increased mesophyll conductance in plants according to new research from the University of Illinois. Mesophyll conductance plays a key role in photosynthesis and refers to the ease with which CO2 can diffuse through a leaf'.....»»
Clumps of an otherwise non-toxic molecule inhibit strep"s DNA-cleaving enzymes, researchers discover
An entirely new approach to inhibiting DNA-cleaving enzymes works through the aggregation of an otherwise non-toxic molecule. This Kobe University discovery may lead to a much-needed method for curbing Streptococcus growth......»»
Astronomers" simulations support dark matter theory
Computer simulations by astronomers support the idea that dark matter—matter that no one has yet directly detected but which many physicists think must be there to explain several aspects of the observable universe—exists, according to the resear.....»»
Inexpensive spring truffles or exquisite Piedmont truffles? New analytical method can detect food fraud
Some truffles are particularly expensive and therefore often the target of food fraud. For example, high-priced Piedmont truffles (Tuber magnatum) are often difficult to distinguish from the cheaper spring truffles (T. borchii) on the basis of their.....»»
Hong Kong team plants seeds to safeguard legacy grains
Far from the soaring skyscrapers synonymous with Hong Kong, scientists and farmers labor in a paddy field on the city's outskirts to revive dormant rice varieties that once sprung from local soil......»»