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Computers & Math

Breaking Ground in 6G Technology: A Leap Forward in Semiconductor Innovation

Self-driving cars which eliminate traffic jams, getting a healthcare diagnosis instantly without leaving your home, or feeling the touch of loved ones based across the continent may sound like the stuff of science fiction. But new research could make all this and more a step closer to reality thanks to a radical breakthrough in semiconductor technology.

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The world is on the cusp of a technological revolution that could transform the way we live, work, and interact with one another. A team of researchers from the University of Bristol has made a groundbreaking breakthrough in semiconductor technology that could supercharge 6G delivery, paving the way for previously unimaginable advancements in fields such as healthcare, transportation, and communication.

Led by Professor Martin Kuball, the research team has developed an innovative way to accelerate data transfer between scores of users, potentially across the globe. This achievement is set to revolutionize industries that rely on fast and efficient data transmission, including remote diagnostics and surgery, virtual classrooms, and advanced driver assistance systems.
Co-lead author Dr Akhil Shaji explained: “We have piloted a device technology called superlattice castellated field effect transistors (SLCFETs), in which more than 1000 fins with sub-100 nm width help drive the current. Although SLCFETs have demonstrated the highest performance in the W-band frequency range, equating to 75 gigahertz -110 GHz, the physics behind it was unknown.”
The researchers then needed to pinpoint exactly where this effect occurred, by simultaneously using ultra precision electrical measurements and optical microscopy, so it could be further studied and understood. After analysing more than 1,000 fins findings located this effect to the widest fin.
Prof Kuball added: “We also developed a 3D model using a simulator to further verify our observations. The next challenge was to study the reliability aspects of latch effect for practical applications. The rigorous testing of the device over a long duration of time showed it has no detrimental effect on device reliability or performance.”
Next steps for the work include further increasing the power density the devices can deliver, so they can offer even higher performance and serve wider audiences. Industry partners will also be bringing such next generation devices to a commercial market.

The potential benefits of this research are far-reaching, with applications in healthcare, transportation, communication, and more. The researchers at the University of Bristol are at the forefront of improving electrical performance and efficiency in a wide range of different applications and settings.
Professor Kuball leads the Centre for Device Thermography and Reliability (CDTR), which is developing next generation semiconductor electronic devices for net zero, and for communications and radar technology. It also works on improving device thermal management, electrical performance and reliability, using wide and ultra-wide bandgap semiconductors.

In conclusion, the breakthrough in semiconductor technology made by the University of Bristol’s research team has the potential to revolutionize various industries and transform human experiences in many different ways. The future is exciting, and it’s not hard to imagine a world where flying cars, virtual reality contact lenses, and other futuristic technologies become a reality.

Artificial Intelligence

The Real-Life Kryptonite Found in Serbia – A Game-Changer for Earth’s Energy Transition

Deep in Serbia’s Jadar Valley, scientists discovered a mineral with an uncanny resemblance to Superman’s Kryptonite both in composition and name. Dubbed jadarite, this dull white crystal lacks the glowing green menace of its comic book counterpart but packs a punch in the real world. Rich in lithium and boron, jadarite could help supercharge the global transition to green energy.

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The discovery of jadarite, a rare and fascinating mineral, has been hailed as “Earth’s kryptonite twin” due to its similarities to the fictional substance from the comic books. Found in the Jadar Valley of Serbia by exploration geologists from Rio Tinto in 2004, this sodium lithium boron silicate hydroxide mineral has immense potential for Earth’s energy transition away from fossil fuels.

Initially, jadarite didn’t match any known mineral at the time and was identified after analysis by the Natural History Museum in London and the National Research Council of Canada. It was officially recognized as a new mineral in 2006. While it shares some similarities with kryptonite, including its chemical formula LiNaSiB₃O₇(OH), jadarite is a much less supernatural dull white mineral that fluoresces pinkish-orange under UV light.

According to Michael Page, a scientist with Australia’s Nuclear Science and Technology Organisation (ANSTO), “the real jadarite has great potential as an important source of lithium and boron.” In fact, the Jadar deposit where it was first discovered is considered one of the largest lithium deposits in the world, making it a potential game-changer for the global green energy transition.

The work that ANSTO does focuses on how critical minerals like jadarite can be utilized to support Australian industry in a commercial capacity. They have produced battery-grade lithium chemicals from various mineral deposits, including spodumene, lepidolite, and even jadarite, ensuring that Australian miners receive the support they need to meet the challenges of the energy transition.

As the world continues to transition towards renewable energy sources, jadarite’s potential as a key component in this process cannot be overstated. Its discovery is a testament to human ingenuity and our ability to find innovative solutions to complex problems.

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Artificial Intelligence

Revolutionizing Quantum Computing with an Ultra-Thin Chip

Researchers at Harvard have created a groundbreaking metasurface that can replace bulky and complex optical components used in quantum computing with a single, ultra-thin, nanostructured layer. This innovation could make quantum networks far more scalable, stable, and compact. By harnessing the power of graph theory, the team simplified the design of these quantum metasurfaces, enabling them to generate entangled photons and perform sophisticated quantum operations — all on a chip thinner than a human hair. It’s a radical leap forward for room-temperature quantum technology and photonics.

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In the quest for practical quantum computers and networks, photons have emerged as promising carriers of information at room temperature. However, controlling and coherently manipulating these particles within optical devices has proven notoriously difficult due to their inherently noisy nature. To overcome this hurdle, researchers from Harvard’s John A. Paulson School of Engineering and Applied Sciences have developed an innovative solution – a metasurface-based quantum photonics processor.

This groundbreaking device is the result of Federico Capasso’s research team, led by graduate student Kerolos M.A. Yousef. By harnessing the power of specially designed metasurfaces, flat devices etched with nanoscale light-manipulating patterns, they have created an ultra-thin upgrade for quantum-optical chips and setups.

One of the primary advantages of this design is its ability to miniaturize an entire optical setup into a single metasurface. This results in a robust and scalable system that offers numerous benefits, including cost-effectiveness, simplicity of fabrication, and low optical loss. The work has significant implications for quantum sensing, enabling “lab-on-a-chip” capabilities for fundamental science.

To tackle the complex mathematical challenges associated with this design, the researchers drew upon graph theory – a branch of mathematics that uses points and lines to represent connections and relationships. This allowed them to visually determine how photons interfere with each other and predict their effects in experiments.

The resulting paper was a collaboration with Marko Loncar’s lab, which provided expertise and equipment necessary for the project. Neal Sinclair, a research scientist on the team, expressed excitement about this approach, stating that it could efficiently scale optical quantum computers and networks – their biggest challenge compared to other platforms like superconductors or atoms.

This groundbreaking research received support from federal sources, including the Air Force Office of Scientific Research (AFOSR), under award No. FA9550-21-1-0312. The work was performed at the Harvard University Center for Nanoscale Systems.

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Artificial Intelligence

Google’s Deepfake Hunter: Exposing Manipulated Videos with a Universal Detector

AI-generated videos are becoming dangerously convincing and UC Riverside researchers have teamed up with Google to fight back. Their new system, UNITE, can detect deepfakes even when faces aren’t visible, going beyond traditional methods by scanning backgrounds, motion, and subtle cues. As fake content becomes easier to generate and harder to detect, this universal tool might become essential for newsrooms and social media platforms trying to safeguard the truth.

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In an era where manipulated videos can spread disinformation, bully people, and incite harm, researchers at the University of California, Riverside (UCR), have created a powerful new system to expose these fakes. Amit Roy-Chowdhury, a professor of electrical and computer engineering, and doctoral candidate Rohit Kundu, teamed up with Google scientists to develop an artificial intelligence model that detects video tampering – even when manipulations go far beyond face swaps and altered speech.

Their new system, called the Universal Network for Identifying Tampered and synthEtic videos (UNITE), detects forgeries by examining not just faces but full video frames, including backgrounds and motion patterns. This analysis makes it one of the first tools capable of identifying synthetic or doctored videos that do not rely on facial content.

“Deepfakes have evolved,” Kundu said. “They’re not just about face swaps anymore. People are now creating entirely fake videos – from faces to backgrounds – using powerful generative models. Our system is built to catch all of that.”

UNITE’s development comes as text-to-video and image-to-video generation have become widely available online. These AI platforms enable virtually anyone to fabricate highly convincing videos, posing serious risks to individuals, institutions, and democracy itself.

“It’s scary how accessible these tools have become,” Kundu said. “Anyone with moderate skills can bypass safety filters and generate realistic videos of public figures saying things they never said.”

Kundu explained that earlier deepfake detectors focused almost entirely on face cues. If there’s no face in the frame, many detectors simply don’t work. But disinformation can come in many forms. Altering a scene’s background can distort the truth just as easily.

To address this, UNITE uses a transformer-based deep learning model to analyze video clips. It detects subtle spatial and temporal inconsistencies – cues often missed by previous systems. The model draws on a foundational AI framework known as SigLIP, which extracts features not bound to a specific person or object. A novel training method, dubbed “attention-diversity loss,” prompts the system to monitor multiple visual regions in each frame, preventing it from focusing solely on faces.

The result is a universal detector capable of flagging a range of forgeries – from simple facial swaps to complex, fully synthetic videos generated without any real footage. It’s one model that handles all these scenarios,” Kundu said. “That’s what makes it universal.”

The researchers presented their findings at the high-ranking 2025 Conference on Computer Vision and Pattern Recognition (CVPR) in Nashville, Tenn. Their paper, led by Kundu, outlines UNITE’s architecture and training methodology.

While still in development, UNITE could soon play a vital role in defending against video disinformation. Potential users include social media platforms, fact-checkers, and newsrooms working to prevent manipulated videos from going viral.

“People deserve to know whether what they’re seeing is real,” Kundu said. “And as AI gets better at faking reality, we have to get better at revealing the truth.”

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