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Physics news
Novel protocols for estimating Hamiltonian parameters of a superconducting quantum processor could improve precision
Researchers at Freie Universität Berlin, University of Maryland and NIST, Google AI, and Abu Dhabi set out to robustly estimate the free Hamiltonian parameters of bosonic excitations in a superconducting quantum simulator. ...
Google's sycamore quantum chip beats classical computers running random circuit sampling
A team of engineers, physicists and quantum specialists at Google Research has found that reducing noise to a certain level allows the company's sycamore quantum chip to beat classical computers running random circuit sampling ...
Researchers develop a laser that produces the strongest ultra-short laser pulses to date
The word laser usually conjures up an image of a strongly concentrated and continuous light beam. Lasers that produce such light are, in fact, very common and useful. However, science and industry often also require very ...
Optics & Photonics
Oct 12, 2024
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156
Physicists reveal nonlinear transport induced by quantum geometry in planar altermagnets
In recent years, many physicists and materials scientists have been studying a newly uncovered class of magnetic materials known as altermagnets. These materials exhibit a unique type of magnetism that differs from both conventional ...
Study proposes that proteins can compartmentalize and form droplets inside cells
In physics, a system composed of two substances can be modeled in accordance with classical mixture theory, which considers the fraction corresponding to each constituent and the interactions among constituents. Examples ...
General Physics
Oct 11, 2024
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93
Researchers uncover role of plasma waves in mysterious heating of sun's corona
There is a profound mystery in our sun. While the sun's surface temperature measures around 10,000 degrees Fahrenheit, its outer atmosphere, known as the solar corona, measures more like 2 million degrees Fahrenheit, about ...
Plasma Physics
Oct 11, 2024
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Scientists use light to visualize magnetic domains in quantum materials
When something draws us in like a magnet, we take a closer look. When magnets draw in physicists, they take a quantum look. Scientists from Osaka Metropolitan University and the University of Tokyo have successfully used ...
Condensed Matter
Oct 11, 2024
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130
Harnessing quantum principles: Phased arrays within phased arrays for smarter, greener indoor optical wireless networks
Imagine a future where indoor wireless communication systems handle skyrocketing data demands and do so with unmatched reliability and speed. Traditional radio frequency (RF) technologies like Wi-Fi and Bluetooth are beginning ...
First ever visualization shows photoexcited charges traveling across the interface of two semiconductor materials
UC Santa Barbara researchers have achieved the first-ever "movie" of electric charges traveling across the interface of two different semiconductor materials. Using scanning ultrafast electron (SUEM) techniques developed ...
Condensed Matter
Oct 11, 2024
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Powerful and compact optical frequency combs provide unique opportunities
Remember those big, clunky machines needed for super precise light measurements? Those days are fading thanks to tiny devices called microcombs. These chips can do the same job, but on a much smaller scale, opening doors ...
Optics & Photonics
Oct 11, 2024
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Researchers create a three-dimensional multi-focus laser for glass micro-sculpting
Glass materials are widely used in optical and optoelectronic devices due to their low cost and excellent mechanical and optical properties. Among them, glass concave/convex linear structures with feature sizes ranging from ...
Optics & Photonics
Oct 11, 2024
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Interdisciplinary advances in microcombs: Bridging physics and information technology
Researchers are excited about the potential of microcombs, miniature devices that generate precise time and frequency standards. These microcombs could revolutionize fields from high-speed communication, high-resolution measurements ...
Optics & Photonics
Oct 11, 2024
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Theoretical study demonstrates existence of giant photocaloric effects in ferroelectric perovskites
Solid-state cooling is a promising alternative cooling technique that does not rely on the use of gases or liquids, like conventional refrigeration systems, but instead utilizes the properties of solid materials to refrigerate. ...
World's highest-voltage gun accelerates electrons from zero to 80% the speed of light
Scientists at the U.S. Department of Energy's (DOE) Brookhaven National Laboratory have designed and tested the world's highest voltage polarized electron gun, a key piece of technology needed for building the world's first ...
General Physics
Oct 10, 2024
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Researchers discover new isotope plutonium-227
A research team led by researchers at the Institute of Modern Physics (IMP) of the Chinese Academy of Sciences (CAS) has synthesized a new plutonium isotope, plutonium-227. Their study is published in Physical Review C.
General Physics
Oct 10, 2024
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91
Scientists accelerate uranium beam with record power
Scientists and engineers at the Facility for Rare Isotope Beams (FRIB) have reached a new milestone in isotope studies. They accelerated a high-power beam of uranium ions and delivered a record 10.4 kilowatts of continuous ...
General Physics
Oct 10, 2024
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Quantum physicists tap into entanglement to improve the precision of optical atomic clocks
Imagine walking into a room where several different grandfather clocks hang on the walls, each ticking at a different pace. Quantum physicists at the University of Colorado Boulder and the National Institute of Standards ...
Optics & Photonics
Oct 9, 2024
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274
Quantum register reaches 1,200 neutral atoms in continuous operation
A team of physicists led by Johannes Zeiher, research group leader in Immanuel Bloch's Quantum Many-Body Systems department and co-founder of the MPQ spin-off planqc, has achieved significant progress in scaling up quantum ...
Optics & Photonics
Oct 9, 2024
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109
New photonics approach enhances quantum computation efficiency
A recent study, published in Nature Photonics, by Prof. Yaron Bromberg and Dr. Ohad Lib from the Racah Institute of Physics at the Hebrew University of Jerusalem has made significant strides in advancing quantum computing ...
Optics & Photonics
Oct 9, 2024
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Merging atomic clocks with quantum computers could lead to ultraprecise measurements of laws of nature
Physicists like to measure things, and they like those measurements to be as precise as possible. That means working at unfathomably small scales, where distances are much smaller than even the diameters of subatomic particles. ...
General Physics
Oct 9, 2024
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114
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