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Categories: Physics: General, Physics: Optics

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Physics: General Physics: Optics Physics: Quantum Computing Physics: Quantum Physics
Published

What was thought of as noise, points to new type of ultrafast magnetic switching      (via sciencedaily.com)     Original source 

Researchers discover a new type of ultrafast magnetic switching by investigating fluctuations that normally tend to interfere with experiments as noise.

Chemistry: Biochemistry Physics: Optics
Published

Eye-safe laser technology to diagnose traumatic brain injury      (via sciencedaily.com)     Original source 

Researchers have designed and developed a novel diagnostic device to detect traumatic brain injury (TBI) by shining a safe laser into the eye.

Energy: Technology Physics: General Physics: Optics
Published

The secret life of an electromagnon      (via sciencedaily.com)     Original source 

Scientists have revealed how lattice vibrations and spins talk to each other in a hybrid excitation known as an electromagnon. To achieve this, they used a unique combination of experiments on an X-ray free electron laser. Understanding this fundamental process at the atomic level opens the door to ultrafast control of magnetism with light.

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

Compact accelerator technology achieves major energy milestone      (via sciencedaily.com)     Original source 

Researchers have demonstrated a compact particle accelerator less than 20 meters long that produces an electron beam with an energy of 10 billion electron volts (10 GeV). There are only two other accelerators currently operating in the U.S. that can reach such high electron energies, but both are approximately 3 kilometers long. This type of accelerator is called a wakefield laser accelerator.

Physics: General Physics: Quantum Physics Space: Astronomy Space: Astrophysics Space: Cosmology Space: Exploration Space: General Space: Structures and Features
Published

New way of searching for dark matter      (via sciencedaily.com)     Original source 

Wondering whether whether Dark Matter particles actually are produced inside a jet of standard model particles, led researchers to explore a new detector signature known as semi-visible jets, which scientists never looked at before.

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

'Strange metal' is strangely quiet in noise experiment      (via sciencedaily.com)     Original source 

Experiments have provided the first direct evidence that electricity seems to flow through 'strange metals' in an unusual liquid-like form.

Chemistry: Biochemistry Energy: Alternative Fuels Engineering: Robotics Research Environmental: General Physics: Optics
Published

AI for perovskite solar cells: Key to better manufacturing      (via sciencedaily.com)     Original source 

Tandem solar cells based on perovskite semiconductors convert sunlight to electricity more efficiently than conventional silicon solar cells. In order to make this technology ready for the market, further improvements with regard to stability and manufacturing processes are required. Researchers have succeeded in finding a way to predict the quality of the perovskite layers and consequently that of the resulting solar cells: Assisted by Machine Learning and new methods in Artificial Intelligence (AI), it is possible assess their quality from variations in light emission already in the manufacturing process.

Offbeat: Computers and Math Offbeat: General Physics: General Physics: Quantum Physics
Published

First experimental evidence of hopfions in crystals opens up new dimension for future technology      (via sciencedaily.com)     Original source 

Hopfions, magnetic spin structures predicted decades ago, have become a hot and challenging research topic in recent years. New findings open up new fields in experimental physics: identifying other crystals in which hopfions are stable, studying how hopfions interact with electric and spin currents, hopfion dynamics, and more.

Energy: Batteries Energy: Technology Physics: Optics
Published

Long in the Bluetooth: Scientists develop a more efficient way to transmit data between our devices      (via sciencedaily.com)     Original source 

Researchers have developed a more energy efficient way of connecting our personal devices. New technology consumes less power than Bluetooth and can improve battery life of tech accessories, including earbuds and fitness trackers. Future applications could see us unlocking a door by touching its handle or shaking hands to exchange phone numbers.

Chemistry: Biochemistry Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

Research reveals rare metal could offer revolutionary switch for future quantum devices      (via sciencedaily.com)     Original source 

Quantum scientists have discovered a rare phenomenon that could hold the key to creating a 'perfect switch' in quantum devices which flips between being an insulator and superconductor.

Biology: Biochemistry Biology: Cell Biology Biology: General Biology: Microbiology Chemistry: Biochemistry Computer Science: General Engineering: Nanotechnology Mathematics: General Mathematics: Modeling Physics: General
Published

New computer code for mechanics of tissues and cells in three dimensions      (via sciencedaily.com)     Original source 

Biological materials are made of individual components, including tiny motors that convert fuel into motion. This creates patterns of movement, and the material shapes itself with coherent flows by constant consumption of energy. Such continuously driven materials are called 'active matter'. The mechanics of cells and tissues can be described by active matter theory, a scientific framework to understand shape, flows, and form of living materials. The active matter theory consists of many challenging mathematical equations. Scientists have now developed an algorithm, implemented in an open-source supercomputer code, that can for the first time solve the equations of active matter theory in realistic scenarios. These solutions bring us a big step closer to solving the century-old riddle of how cells and tissues attain their shape and to designing artificial biological machines.

Biology: Cell Biology Biology: General Biology: Marine Chemistry: General Chemistry: Inorganic Chemistry Ecology: Sea Life Physics: Optics
Published

A deep-sea fish inspired researchers to develop supramolecular light-driven machinery      (via sciencedaily.com)     Original source 

Chemists have developed a bioinspired supramolecular approach to convert photo-switchable molecules from their stable state into metastable one with low-energy red light. Their work enables fast, highly selective, and efficient switching, providing new tools for energy storage, activation of drugs with light, and sensing applications.

Chemistry: Biochemistry Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

Three-pronged approach discerns qualities of quantum spin liquids      (via sciencedaily.com)     Original source 

In 1973, physicist Phil Anderson hypothesized that the quantum spin liquid, or QSL, state existed on some triangular lattices, but he lacked the tools to delve deeper. Fifty years later, a team has confirmed the presence of QSL behavior in a new material with this structure, KYbSe2.  

Chemistry: Inorganic Chemistry Physics: Acoustics and Ultrasound Physics: Optics
Published

Novel measurement technique for fluid mixing phenomena using selective color imaging method      (via sciencedaily.com)     Original source 

A novel measurement technique has been developed to visualize the fluid flow and distribution within two droplets levitated and coalesced in space using fluorescence-emitting particles. This technique enabled the estimation of fluid motion within each droplet, thereby revealing the internal flow caused by surface vibration when the droplet merging promotes fluid mixing.

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

Riddle of Kondo effect solved in ultimately thin wires      (via sciencedaily.com)     Original source 

A research team has now directly measured the so-called Kondo effect, which governs the behavior of magnetic atoms surrounded by a sea of electrons: New observations with a scanning tunneling microscope reveal the effect in one-dimensional wires floating on graphene. 

Chemistry: Inorganic Chemistry Physics: Acoustics and Ultrasound Physics: Optics
Published

New laser setup probes metamaterial structures with ultrafast pulses      (via sciencedaily.com)     Original source 

A new technique offers a safe, reliable, and high-throughput way to dynamically characterize microscale metamaterials. The method could speed up the development of acoustic lenses, impact-resistant films, and other futuristic materials.

Computer Science: Encryption Computer Science: Quantum Computers Mathematics: Puzzles Physics: General Physics: Quantum Computing Physics: Quantum Physics
Published

Keep it secret: Cloud data storage security approach taps quantum physics      (via sciencedaily.com)     Original source 

Distributed cloud storage is a hot topic for security researchers, and a team is now merging quantum physics with mature cryptography and storage techniques to achieve a cost-effective cloud storage solution.

Offbeat: General Offbeat: Space Physics: General Physics: Optics Physics: Quantum Physics Space: Exploration Space: General Space: Structures and Features
Published

Tracking down quantum flickering of the vacuum      (via sciencedaily.com)     Original source 

Absolutely empty -- that is how most of us envision the vacuum. Yet, in reality, it is filled with an energetic flickering: the quantum fluctuations. Experts are currently preparing a laser experiment intended to verify these vacuum fluctuations in a novel way, which could potentially provide clues to new laws in physics. A research team has developed a series of proposals designed to help conduct the experiment more effectively -- thus increasing the chances of success.

Physics: General Physics: Optics
Published

Photo-induced superconductivity on a chip      (via sciencedaily.com)     Original source 

Researchers have shown that a previously demonstrated ability to turn on superconductivity with a laser beam can be integrated on a chip, opening up a route toward opto-electronic applications.