Archive for the ‘computing’ category: Page 4

Nov 7, 2023

Unlocking Quantum Secrets — Simulations Reveal the Atomic-Scale Story of Qubits

Posted by in categories: biotech/medical, chemistry, computing, engineering, quantum physics

Researchers at the University of Chicago’s Pritzker School of Molecular Engineering, led by Giulia Galli, have conducted a computational study predicting the conditions necessary to create specific spin defects in silicon carbide. These findings, detailed in a paper published in Nature Communications

<em> Nature Communications </em> is a peer-reviewed, open-access, multidisciplinary, scientific journal published by Nature Portfolio. It covers the natural sciences, including physics, biology, chemistry, medicine, and earth sciences. It began publishing in 2010 and has editorial offices in London, Berlin, New York City, and Shanghai.

Nov 5, 2023

New microchip material is 10 times stronger than Kevlar

Posted by in categories: computing, materials

The new material is highly scalable especially compared to other alternatives such as graphene and diamonds.

Researchers at Delft University of Technology have created a novel material that has a yield strength ten times higher than Kevlar, rivaling the strength of other super strong alternatives such as graphene and diamonds.

High-strength synthetic fibers like Kevlar are renowned for their remarkable resilience to abrasion and wear. They are most notably used in applications that are reinforcing and strengthening, particularly in body armor, helmets, and other protective gear.

Nov 5, 2023

Apple’s M3 chips: the result of a $1 billion project

Posted by in category: computing

The M3 chips come in three versions: the M3, the M3 Pro, and the M3 Max.

Since moving away from Intel to develop its in-house PC chips laid on the foundation of its mobile A-series chips, Apple’s M series desktop chips have changed the dynamics of the PC industry. The M1 not only proved to be successful but also powerful and efficient at the same time, earning early adopter’s trust for reliability to move to a new ARM-based desktop architecture. With Apple’s Rosetta at play, early adopters could bet on moving away from Intel chips to try their beloved apps and software suits within the new ARM system.

M3 chips: Apple’s billion-dollar gamble

Continue reading “Apple’s M3 chips: the result of a $1 billion project” »

Nov 5, 2023

New batteries for electric cars and wearables, backed by multi-million US$ funding, are both fire resistant and flexible

Posted by in categories: climatology, computing, sustainability, wearables

Batteries are regarded as crucial technologies in the battle against climate change, particularly for electric vehicles and storing energy from renewable sources. Anthro Energy’s novel flexible batteries are presently available to wearable manufacturers and could be employed in a variety of areas, including electric cars and laptops.

The innovative batteries score well in fire safety, thanks to new materials and design features that eliminate internal and external mechanical safety risks like explosions. Many of today’s batteries, such as lithium-ion batteries, contain a flammable liquid as an electrolyte.

Anthro Energy’s David Mackaniac and his team have created a flexible polymer electrolyte that is malleable like rubber. The new technology provides increased design flexibility for use across a range of devices, with adaptable shapes and sizes to suit specific applications.

Nov 5, 2023

First benchmarks back up Apple claims of blazing-fast M3 chip speeds [Updated]

Posted by in category: computing

The Geekbench database’s benchmark speed test results show Apple’s on target with its claims about M3 chip speed.

Nov 5, 2023

A significant milestone toward quantum computing

Posted by in categories: computing, quantum physics

Breakthrough realized for retaining quantum information in a single-electron quantum bit.

Nov 4, 2023

Fastest ever semiconductor could massively speed up computer chips

Posted by in categories: computing, particle physics

A record-breaking superatomic semiconductor material allows particles to traverse it between 100 and 1,000 times faster than electrons pass through a silicon chip.

By Matthew Sparkes

Nov 3, 2023

Vacuum in optical cavity can change material’s magnetic state without laser excitation

Posted by in categories: computing, engineering, physics

Researchers in Germany and the U.S. have produced the first theoretical demonstration that the magnetic state of an atomically thin material, α-RuCl3, can be controlled solely by placing it into an optical cavity. Crucially, the cavity vacuum fluctuations alone are sufficient to change the material’s magnetic order from a zigzag antiferromagnet into a ferromagnet. The team’s work has been published in npj Computational Materials.

A recent theme in material physics research has been the use of intense laser light to modify the properties of magnetic materials. By carefully engineering the laser light’s properties, researchers have been able to drastically modify the and optical properties of different materials.

However, this requires continuous stimulation by high-intensity lasers and is associated with some practical problems, mainly that it is difficult to stop the material from heating up. Researchers are therefore looking for ways to gain similar control over materials using light, but without employing intense lasers.

Nov 3, 2023

A review of liquid crystal spatial light modulators devices and applications

Posted by in categories: computing, quantum physics

Technology to control and harness light has existed for centuries, often as static solutions that must be custom-designed. It is only in the past couple of decades that the digital era of micro-electronics and computing has seen fast rewritable technology meant for displays find its way into the mainstream of optics.

In a new review published in Opto-Electronic Science, the authors showcase the recent advances in replacing the traditional static optical toolkit with a modern digital toolkit for “ on demand.” The result has been the introduction of digitally controlled light to nearly all major optical laboratories worldwide, opening new paths for the creation, control, detection, and harnessing of exotic forms of structured light. The advanced toolkit promises novel applications from classical to quantum, ushering in a new chapter in on-demand structured light.

The authors of this article reviewed recent progress in using a modern digital toolkit for on-demand forms of sculptured light, offering new insights and perspectives on this nascent topic. The core technology that has advanced this field is the liquid crystal spatial light modulator (SLM), allowing high resolution tailoring of light in amplitude, phase, polarization, or even more exotic degrees of freedom such as path, , and even spatiotemporal control. These simple yet highly effective devices are made up of millions of pixels that can be modulated in phase, for spatial control of light in an in-principle lossless manner.

Nov 3, 2023

Study observes strong noise correlations between silicon qubits

Posted by in categories: computing, quantum physics

To build highly performing quantum computers, researchers should be able to reliably derive information about the noise inside them, while also identifying effective strategies to suppress this noise. In recent years, significant progress has been made in this direction, enabling operation errors below 1% in various quantum computing platforms.

A research team at Tokyo Institute of Technology and RIKEN recently set out to reliably quantify the between the produced by pairs of semiconductor-based qubits, which are very appealing for the development of scalable quantum processors. Their paper, published in Nature Physics, unveiled strong interqubit noise correlations between a pair of neighboring silicon spin qubits.

“A useful quantum computer would practically require millions of densely packed, well-controlled qubits with errors not only small but also sufficiently uncorrelated,” Jun Yoneda, one of the researchers who carried out the study, told “We set out to address the potentially serious issue of correlation in silicon qubits, as they have become a compelling platform for large quantum computations otherwise.”

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