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Categories: Energy: Fossil Fuels, Physics: General

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Engineering: Graphene Engineering: Nanotechnology Offbeat: Computers and Math Offbeat: General Physics: General Physics: Optics
Published

Terahertz-to-visible light conversion for future telecommunications      (via sciencedaily.com)     Original source 

A study demonstrates that graphene-based materials can be used to efficiently convert high-frequency signals into visible light, and that this mechanism is ultrafast and tunable. These outcomes open the path to exciting applications in near-future information and communication technologies.

Chemistry: Inorganic Chemistry Offbeat: General Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

For experimental physicists, quantum frustration leads to fundamental discovery      (via sciencedaily.com)     Original source 

A team of physicists recently announced that they have discovered a new phase of matter. Called the 'chiral bose-liquid state,' the discovery opens a new path in the age-old effort to understand the nature of the physical world.

Computer Science: General Engineering: Robotics Research Physics: General Physics: Quantum Physics
Published

Metamaterials with built-in frustration have mechanical memory      (via sciencedaily.com)     Original source 

Researchers have discovered how to design materials that necessarily have a point or line where the material doesn't deform under stress, and that even remember how they have been poked or squeezed in the past. These results could be used in robotics and mechanical computers, while similar design principles could be used in quantum computers.

Chemistry: Biochemistry Computer Science: General Computer Science: Quantum Computers Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

New technique in error-prone quantum computing makes classical computers sweat      (via sciencedaily.com)     Original source 

Today's quantum computers often calculate the wrong answer because of noisy environments that interfere with the quantum entanglement of qubits. IBM Quantum has pioneered a technique that accounts for the noise to achieve reliable results. They tested this error mitigation strategy against supercomputer simulations run by physicists, and for the hardest calculations, the quantum computer bested the supercomputer. This is evidence for the utility of today's noisy quantum computers for performing real-world calculations.

Computer Science: Artificial Intelligence (AI) Computer Science: General Engineering: Robotics Research Physics: General
Published

Hybrid AI-powered computer vision combines physics and big data      (via sciencedaily.com)     Original source 

Researchers have laid out a new approach to enhance artificial intelligence-powered computer vision technologies by adding physics-based awareness to data-driven techniques. The study offered an overview of a hybrid methodology designed to improve how AI-based machinery sense, interact and respond to its environment in real time -- as in how autonomous vehicles move and maneuver, or how robots use the improved technology to carry out precision actions.

Engineering: Graphene Physics: General
Published

Shining potential of missing atoms      (via sciencedaily.com)     Original source 

Single photons have applications in quantum computation, information networks, and sensors, and these can be emitted by defects in the atomically thin insulator hexagonal boron nitride (hBN). Missing nitrogen atoms have been suggested to be the atomic structure responsible for this activity, but it is difficult to controllably remove them. A team has now shown that single atoms can be kicked out using a scanning transmission electron microscope under ultra-high vacuum.

Chemistry: Inorganic Chemistry Physics: General Physics: Optics
Published

Mirror, mirror on the wall... Now we know there are chiral phonons for sure      (via sciencedaily.com)     Original source 

New findings settle the dispute: phonons can be chiral. This fundamental concept, discovered using circular X-ray light, sees phonons twisting like a corkscrew through quartz.

Chemistry: General Chemistry: Inorganic Chemistry Chemistry: Organic Chemistry Offbeat: General Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

Breakthrough: Scientists develop artificial molecules that behave like real ones      (via sciencedaily.com)     Original source 

Scientists have developed synthetic molecules that resemble real organic molecules. A collaboration of researcher can now simulate the behavior of real molecules by using artificial molecules.

Chemistry: Biochemistry Computer Science: General Computer Science: Quantum Computers Offbeat: Computers and Math Offbeat: General Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

Schrödinger's cat makes better qubits      (via sciencedaily.com)     Original source 

Drawing from Schrodinger's cat thought experiment, scientists have built a 'critical cat code' qubit that uses bosons to store and process information in a way that is more reliable and resistant to errors than previous qubit designs.

Chemistry: Biochemistry Chemistry: Inorganic Chemistry Physics: General Physics: Quantum Physics
Published

Physicists discover an exotic material made of bosons      (via sciencedaily.com)     Original source 

Take a lattice -- a flat section of a grid of uniform cells, like a window screen or a honeycomb -- and lay another, similar lattice above it. But instead of trying to line up the edges or the cells of both lattices, give the top grid a twist so that you can see portions of the lower one through it. This new, third pattern is a moiré, and it's between this type of overlapping arrangement of lattices of tungsten diselenide and tungsten disulfide where physicists found some interesting material behaviors.

Chemistry: Biochemistry Chemistry: Inorganic Chemistry Energy: Nuclear Physics: General Physics: Quantum Physics
Published

Calculation shows why heavy quarks get caught up in the flow      (via sciencedaily.com)     Original source 

Theorists have calculated how quickly a melted soup of quarks and gluons -- the building blocks of protons and neutrons -- transfers its momentum to heavy quarks. The calculation will help explain experimental results showing heavy quarks getting caught up in the flow of matter generated in heavy ion collisions.

Computer Science: Artificial Intelligence (AI) Computer Science: General Computer Science: Quantum Computers Energy: Technology Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

New superconducting diode could improve performance of quantum computers and artificial intelligence      (via sciencedaily.com)     Original source 

A team has developed a more energy-efficient, tunable superconducting diode -- a promising component for future electronic devices -- that could help scale up quantum computers for industry and improve artificial intelligence systems.

Chemistry: General Chemistry: Inorganic Chemistry Engineering: Nanotechnology Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geochemistry Physics: General
Published

The problems with coal ash start smaller than anyone thought      (via sciencedaily.com)     Original source 

Burning coal doesn't only pollute the air. The resulting ash can leach toxic chemicals into the local environments where it's kept. New research shows that the toxicity of various ash stockpiles relies heavily on its nanoscale structures, which vary widely between sources. The results will help researchers predict which coal ash is most environmentally dangerous.

Chemistry: Inorganic Chemistry Mathematics: Modeling Physics: General Physics: Quantum Physics
Published

Finally solved! The great mystery of quantized vortex motion      (via sciencedaily.com)     Original source 

Scientists investigated numerically the interaction between a quantized vortex and a normal-fluid. Based on the experimental results, researchers decided the most consistent of several theoretical models. They found that a model that accounts for changes in the normal-fluid and incorporates more theoretically accurate mutual friction is the most compatible with the experimental results.

Chemistry: Inorganic Chemistry Chemistry: Thermodynamics Engineering: Nanotechnology Physics: General
Published

Researchers finds a way to reduce the overheating of semiconductor devices      (via sciencedaily.com)     Original source 

Scientists have identified a method for improving the thermal conductivity of thin metal films in semiconductors using surface waves for the first time in the world.

Chemistry: Biochemistry Computer Science: General Computer Science: Quantum Computers Engineering: Nanotechnology Offbeat: Computers and Math Offbeat: General Physics: General Physics: Optics Physics: Quantum Computing Physics: Quantum Physics
Published

The 'breath' between atoms -- a new building block for quantum technology      (via sciencedaily.com)     Original source 

Researchers have discovered they can detect atomic 'breathing,' or the mechanical vibration between two layers of atoms, by observing the type of light those atoms emitted when stimulated by a laser. The sound of this atomic 'breath' could help researchers encode and transmit quantum information.

Chemistry: General Chemistry: Inorganic Chemistry Geoscience: Geochemistry Physics: General Physics: Optics
Published

X-rays visualize how one of nature's strongest bonds breaks      (via sciencedaily.com)     Original source 

The use of short flashes of X-ray light brings scientists one big step closer toward developing better catalysts to transform the greenhouse gas methane into a less harmful chemical. The result reveals for the first time how carbon-hydrogen bonds of alkanes break and how the catalyst works in this reaction.