You Can Measure This Fundamental Quantum Constant Using LEDs
Planck’s constant helps us understand atomic-sized things. One of the best ways to grok it is through this experiment involving different colors of light......»»
The Mysterious ‘Dark’ Energy That Permeates the Universe Is Slowly Eroding
Physicists call the dark energy that drives the universe “the cosmological constant.” Now the largest map of the cosmos to date hints that this mysterious energy has been changing over billions of years......»»
Mapping the Milky Way"s magnetic field in 3D
We are all very familiar with the concept of the Earth's magnetic field. It turns out that most objects in space have magnetic fields but it's quite tricky to measure them. Astronomers have developed an ingenious way to measure the magnetic field of.....»»
Global study shows a third more insects come out after dark
A groundbreaking study, led by Dr. Mark Wong of The University of Western Australia, has provided the first global picture of insect activity patterns across the fundamental day–night cycle......»»
The end of the quantum tunnel: Exact instanton transseries for quantum mechanics
In the quantum world, processes can be separated into two distinct classes. One class, that of the so-called "perturbative" phenomena, is relatively easy to detect, both in an experiment and in a mathematical computation. Examples are plentiful: the.....»»
Unveiling a new quantum frontier: Frequency-domain entanglement
Scientists have introduced a form of quantum entanglement known as frequency-domain photon number-path entanglement. This advance in quantum physics involves an innovative tool called a frequency beam splitter, which has the unique ability to alter t.....»»
Genetic hope in fight against devastating wheat disease
Fungal disease Fusarium head blight (FHB) is on the rise due to increasingly humid conditions induced by climate change during the wheat growing season, but a fundamental discovery by University of Adelaide researchers could help reduce its economic.....»»
Scientists say voluntary corporate emissions targets not enough to create real climate action
Companies' emissions reduction targets should not be the sole measure of corporate climate ambition, according to a new perspective paper......»»
New dataset sheds light on relationship of far-red sun-induced chlorophyll fluorescence to canopy-level photosynthesis
In recent years, the scientific community has increasingly turned its attention to sustainable agriculture, aiming to maximize crop yield while minimizing environmental impact. A crucial aspect of this research involves understanding the fundamental.....»»
Demonstration of heralded three-photon entanglement on a photonic chip
Photonic quantum computers are computational tools that leverage quantum physics and utilize particles of light (i.e., photons) as units of information processing. These computers could eventually outperform conventional quantum computers in terms of.....»»
Scientists tune the entanglement structure in an array of qubits
Entanglement is a form of correlation between quantum objects, such as particles at the atomic scale. The laws of classical physics cannot explain this uniquely quantum phenomenon, yet it is one of the properties that explain the macroscopic behavior.....»»
How studying trends in human lifespans can measure progress in addressing inequality
People are living longer lives compared to previous generations but, over the last few decades, there has been a hidden shift—they are passing away at increasingly similar ages......»»
From the coast to the deep sea, changing oxygen levels affect marine life in different ways
Earth's atmosphere maintains a constant level of oxygen, whether it is a wintry, rainy day or hot summer. Across the ocean, oxygen concentrations vary enormously between different places and over time. Sometimes oxygen levels change within the course.....»»
The big quantum chill: Scientists modify common lab refrigerator to cool faster with less energy
By modifying a refrigerator commonly used in both research and industry, researchers at the National Institute of Standards and Technology (NIST) have drastically reduced the time and energy required to cool materials to within a few degrees above ab.....»»
Study shines light on properties and promise of hexagonal boron nitride, used in electronic and photonics technologies
Single-photon emitters (SPEs) are akin to microscopic lightbulbs that emit only one photon (a quantum of light) at a time. These tiny structures hold immense importance for the development of quantum technology, particularly in applications such as s.....»»
Manipulating the geometry of the "electron universe" in magnets
Researchers at Tohoku University and the Japan Atomic Energy Agency have developed fundamental experiments and theories to manipulate the geometry of the "electron universe," which describes the structure of electronic quantum states in a manner math.....»»
TikTok fears point to larger problem: Poor media literacy in the social media age
The U.S. government moved closer to banning the video social media app TikTok after the House of Representatives attached the measure to an emergency spending bill on Apr. 17, 2024. The House voted on each of the four components of the bill, and the.....»»
Diamond-based quantum sensing microscope offers effective approach for quantifying cellular forces
Cells rely on constant interplay and information exchange with their micro-environment to ensure their survival and perform biological functions. Hence, precise quantification of tiny cellular adhesion forces, spanning from piconewtons to a few nanon.....»»
Springing simulations forward with quantum computing
Though "coupled oscillations" may not sound familiar, they are everywhere in nature. The term "coupled harmonic oscillators" describes interacting systems of masses and springs, but their utility in science and engineering does not end there. They de.....»»
House passes bill saying ByteDance must sell or spin off TikTok or face a ban
The US House of Representatives has passed a combination bill related to sanctions on other countries, such as Russia that includes language that could force the sale or divestiture of TikTok.Legislators have framed the measure in such a way as to do.....»»
Compact quantum light processing: New findings lead to advances in optical quantum computing
An international collaboration of researchers, led by Philip Walther at University of Vienna, have achieved a significant breakthrough in quantum technology, with the successful demonstration of quantum interference among several single photons using.....»»