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Category: computing – Page 10

Nickelate superconductors share a common electronic fingerprint

Superconductors, materials that conduct electricity with zero electrical resistance at specific temperature ranges, have proved very promising for the development of quantum computers and other cutting-edge technologies. While most of these materials become superconducting at very low temperatures, others exhibit superconductivity at higher temperatures.

Two types of materials that are known to be high-temperature semiconductors are cuprates (i.e., compounds containing negatively charged copper ions) and nickelates (i.e., compounds that contain negatively charged nickel-oxygen ions). While cuprates have been known to be superconductors for decades, nickelates were only recently found to exhibit superconductivity at unusually high temperatures.

Researchers at University of British Columbia (UBC), Argonne National Laboratory, and the Canadian Light Source (CLS), carried out a study aimed at better understanding how the electronic structure of nickelates contributes to their superconductivity.

Predictive surrogates could cut quantum computing measurement overhead by more than 99.97%

Quantum computers, systems that process information leveraging quantum mechanical effects, have the potential of outperforming classical computers on some tasks. Despite their potential, the use of these systems remains very limited, due to their high cost and other challenges that have so far prevented their large-scale fabrication.

Researchers at the Henan Key Laboratory of Quantum Information and Cryptography and Nanyang Technological University have developed predictive surrogates, new computational models that can learn and reproduce the outputs of quantum processors.

These models, introduced in a paper published in Nature Communications, could be used to extract useful information from quantum computers and perform computations more efficiently with provable guarantees, even if users do not have direct access to advanced and expensive quantum computing hardware.

Magnetic Fields May Solve a Longstanding Binary Star Mystery

Magnetic fields may be the hidden force bringing both newborn stars and giant black holes together. New computer simulations suggest that magnetic fields play a crucial role in helping pairs of young stars form. The findings could explain why binary star systems are so common throughout the Milky

One-Character Linux Kernel Flaw Enables Local Root Access, Exploits Now Public

FuzzingLabs reproduced the bug on RHEL 10 ahead of Pwn2Own Berlin 2026, building its own root exploit by a different route. The timeline is tight: the fix shipped February 5, FuzzingLabs published April 16, and Exodus’s detailed write-up landed June 8.

The technique is now documented across Debian, Ubuntu, and Red Hat. Because the bug is in the mainline, any distribution that shipped a vulnerable kernel with both features enabled is exposed, unless a distribution’s hardening or namespace restrictions block the path.

CVE-2026–23111 lands in the middle of a heavy run of Linux local-root disclosures. Recent weeks have brought Copy Fail, the Dirty Frag chain, its Fragnesia variant, DirtyDecrypt, and a nine-year-old ptrace flaw that reads /etc/shadow and runs commands as root.

Organic transistor unites memory, signal processing and light emission below 3.5 V

Seoul National University researchers have developed an ultra-low-voltage electrochemical organic light-emitting transistor that can simultaneously perform signal processing, memory and light emission within a single semiconductor device. By introducing an ion-transport enhancer into the light-emitting polymer semiconductor channel, the team enabled electric-double-layer formation at the drain electrode interface, allowing efficient electron injection without relying on the high voltages or unstable n-type doping used in conventional approaches.

As a result, the device maintained a simple single-active-layer structure while achieving both low-voltage operation and wide, spatially pinned light emission, together with neuromorphic signal-processing functionality.

The work is published in the journal Nature Materials.

New ‘3D’ Computer Chips Could Extend Moore’s Law, Study Shows

In recent years, computer chip performance has bumped up against the physical limitations of the space available on integrated circuits.

Now researchers think they’ve found a solution: Start building upwards.

The innovation could help extend or even exceed the Moore’s Law hypothesis established in the 1960s by Intel chairman Gordon Moore.

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