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Archive for the ‘computing’ category: Page 113

Feb 16, 2024

Harnessing light with hemispherical shells for improved photovoltaics

Posted by in categories: computing, solar power, sustainability

In the pursuit of sustainable energy solutions, the quest for more efficient solar cells is paramount. Organic photovoltaic cells have emerged as a promising alternative to traditional silicon-based counterparts due to their flexibility and cost-effectiveness. However, optimizing their performance remains a significant challenge.

In a pioneering move, new research from Abdullah Gül University (Türkiye) reimagines the structure of organic photovoltaic cells, opting for a hemispherical shell shape to unlock unprecedented potential in and angular coverage.

As reported in the Journal of Photonics for Energy, this innovative configuration aims to maximize light absorption and angular coverage, promising to redefine the landscape of renewable energy technologies. The study presents advanced computational analysis and comparative benchmarks to spotlight the remarkable capabilities of this new design.

Feb 16, 2024

Fermi Paradox: The Impossible Earth hypothesis

Posted by in categories: computing, existential risks, life extension

The aliens haven’t contacted us because they have uploaded themselves into digital information where they live forever anf create simulated universes that they live in or they upload themselves into femto tech level computational substrates and they could surround us.


Is Earth impossible? An exploration of the impossible earth hypothesis and its implications on science and existence.

Continue reading “Fermi Paradox: The Impossible Earth hypothesis” »

Feb 16, 2024

Scientists Create World’s First “Quantum Semiconductor”

Posted by in categories: biotech/medical, computing, mobile phones, quantum physics

Semiconductor devices are small components that manage the movement of electrons in contemporary electronic gadgets. They are essential for powering a wide range of high-tech products, including cell phones, laptops, and vehicle sensors, as well as cutting-edge medical devices. However, the presence of material impurities or variations in temperature can interfere with electron flow, causing instability.

But now, theoretical and experimental physicists from the Würzburg-Dresden Cluster of Excellence ct.qmat—Complexity and Topology in Quantum Matter have developed a semiconductor device from aluminum-gallium-arsenide (AlGaAs). This device’s electron flow, usually susceptible to interference, is safeguarded by a topological quantum phenomenon. This groundbreaking research was recently detailed in the esteemed journal Nature Physics.

“Thanks to the topological skin effect, all of the currents between the different contacts on the quantum semiconductor are unaffected by impurities or other external perturbations. This makes topological devices increasingly appealing for the semiconductor industry. They eliminate the need for the extremely high levels of material purity that currently drive up the costs of electronics manufacturing,” explains Professor Jeroen van den Brink, director of the Institute for Theoretical Solid State Physics at the Leibniz Institute for Solid State and Materials Research in Dresden (IFW) and a principal investigator of ct.qmat.

Feb 16, 2024

A new design for quantum computers

Posted by in categories: computing, encryption, finance, quantum physics

Creating a quantum computer powerful enough to tackle problems we cannot solve with current computers remains a big challenge for quantum physicists. A well-functioning quantum simulator—a specific type of quantum computer—could lead to new discoveries about how the world works at the smallest scales.

Quantum scientist Natalia Chepiga from Delft University of Technology has developed a guide on how to upgrade these machines so that they can simulate even more complex quantum systems. The study is now published in Physical Review Letters.

“Creating useful quantum computers and is one of the most important and debated topics in quantum science today, with the potential to revolutionize society,” says researcher Natalia Chepiga. Quantum simulators are a type of quantum computer. Chepiga explains, “Quantum simulators are meant to address open problems of quantum physics to push our understanding of nature further. Quantum computers will have wide applications in various areas of social life, for example, in finances, encryption, and data storage.”

Feb 16, 2024

How do oceans start to close? New study suggests the Atlantic may ‘soon’ enter its declining phase

Posted by in category: computing

A new study, resorting to computational models, predicts that a subduction zone currently below the Gibraltar Strait will propagate further inside the Atlantic and contribute to forming an Atlantic subduction system—an Atlantic ring of fire. This will happen ‘soon’ in geological terms—in approximately 20 million years.

Oceans seem eternal to our lifespan, but they are not here for long: they are born, grow, and one day close. This process, which takes a few hundred million years, is called Wilson Cycle. The Atlantic, for example, was born when Pangea broke up around 180 million years ago and will one day close. And the Mediterranean is what remains from a big ocean—the Tethys– that once existed between Africa and Eurasia.

For an ocean like the Atlantic to stop growing and start closing, new subduction zones—places where one tectonic plate sinks below another—have to form. But subduction zones are hard to form, as they require plates to break and bend, and plates are very strong. A way out of this “paradox” is to consider that subduction zones can migrate from a dying ocean in which they already exist—the Mediterranean—into pristine oceans—such as the Atlantic. This process was dubbed subduction invasion.

Feb 16, 2024

Unlocking the full potential of Auger electron spectroscopy

Posted by in categories: chemistry, computing, particle physics

Auger electron spectroscopy (AES) is an incredibly useful technique for probing material samples—but current assumptions about the process ignore some of the key time-dependent effects it involves. So far, this has resulted in overly-simplified calculations, which have ultimately prevented the technique from reaching its full potential.

In a study published in The European Physical Journal Plus Alberto Noccera at the University of British Columbia, Canada, together with Adrian Feiguin at Northeastern University, United States, developed a which offers a more precise theoretical description of the AES process, while taking its time dependence into account. Their method could help researchers to improve their quality of material analysis across a wide array of fields: including chemistry, , and microelectronics.

In the Auger process, an inner-shell electron is initially kicked out of its atom, often through an impact with an energetic light pulse. Afterward, the vacancy it leaves behind is filled by an outer-shell electron.

Feb 16, 2024

Unleashing the Power: BatMan Project Revolutionizes Battery Manufacturing

Posted by in categories: computing, sustainability, transportation

Gotham City’s Dark Knight boasts an impressive collection of technological marvels, but the superhero scientists at the U.S. Department of Energy’s (DOE’s) National Renewable Energy Laboratory (NREL) have cutting-edge capabilities of their own.

A recent battery manufacturing project—affectionately called BatMan —has developed a novel laser patterning process to alter the microstructure of battery electrode materials. Funded by DOE’s Advanced Materials and Manufacturing Technologies Office, this project brings together expert minds from NREL, Clarios, Amplitude Laser Group, and Liminal Insights. This revolutionized manufacturing process could unlock significant improvements to electrified transportation, leading the charge toward a brighter and more sustainable future.

“BatMan builds on NREL’s expertise using laser ablation, advanced computational models, and materials characterization to address key challenges in battery manufacturing,” said Bertrand Tremolet de Villers, project co-lead and senior scientist in NREL’s Thin Film and Manufacturing Sciences group. “This new, high-throughput laser patterning process—demonstrated at scale with state-of-the-art roll-to-roll manufacturing techniques—uses laser pulses to quickly and precisely modify and optimize electrode structures, offering a massive leap in battery capabilities with minimal added manufacturing cost.”

Feb 15, 2024

Chinese chipmaker tapes out 16-core DragonChain-powered CPU, 64-core coming — Loongson LS3C6000 server processor will rival Zen 3 CPUs

Posted by in category: computing

Loongson’s next-generation data center CPU is ready.

Feb 15, 2024

People Are Already Returning Their Apple Vision Pro Headsets

Posted by in category: computing

Shocking news: some folks who cashed out the eye-watering $3,500 — before tax! — to purchase Apple’s newly released Vision Pro are already showing some buyer’s remorse.

As Business Insider reports, a tide of users who quickly snatched up Apple’s expensive new face computer are returning the pricey headsets. Specific reasons for returning the devices vary, but across the board, it seems that many users just don’t think the uncomfortable devices are worth the hefty price tag — yet, at least.

As Insider notes, one of the most-cited cons to the Apple Pro is the headset’s weight. The thing is heavy, and though Apple’s attempted to offset the weight issue with what has to be the thickest head strap we’ve ever seen, the heft is a serious problem for users.

Feb 15, 2024

Can Quantum Computers be Beaten by Classical Computers?

Posted by in categories: computing, information science, quantum physics

This post is also available in: he עברית (Hebrew)

Researchers from NYU discovered that classical computers could keep up with or even surpass quantum computers in certain circumstances. Classical computers can get a boost in speed and accuracy by adopting a new innovative algorithmic method, which could mean that they still have a future in a world of quantum computers.

Many experts believe that quantum computing is the future, and that we are veering away from classical computing, primarily because classical computers are significantly slower and weaker than their quantum-based counterparts. However, turns out that quantum computers are delicate and prone to information loss, and even if information is preserved it is difficult to convert it to classical information necessary for practical computation.