Category Technology/Electronics

DeFake Tool Protects Voice Recordings from Cybercriminals

voice
Credit: Pixabay/CC0 Public Domain

In what has become a familiar refrain when discussing artificial intelligence (AI)-enabled technologies, voice cloning makes possible beneficial advances in accessibility and creativity while also enabling increasingly sophisticated scams and deepfakes. To combat the potential negative impacts of voice cloning technology, the U.S. Federal Trade Commission (FTC) challenged researchers and technology experts to develop breakthrough ideas on preventing, monitoring and evaluating malicious voice cloning.

Ning Zhang, an assistant professor of computer science and engineering in the McKelvey School of Engineering at Washington University in St. Louis, was one of three winners of the FTC’s Voice Cloning Challenge announced April 8...

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Compact Quantum Light Processing – A leap forward in optical quantum computing

Fig. 1: Resource-efficient multi-photon processor based on an optical fiber loop.
Fig. 1: Resource-efficient multi-photon processor based on an optical fiber loop. C: Marco Di Vita

An international collaboration of researchers, led by Philip Walther at University of Vienna, have achieved a significant breakthrough in quantum technology, with the successful demonstration of quantum interference among several single photons using a novel resource-efficient platform. The work published in the journal Science Advances represents a notable advancement in optical quantum computing that paves the way for more scalable quantum technologies.

Interference among photons, a fundamental phenomenon in quantum optics, serves as a cornerstone of optical quantum computing.

It involves harnessing the properties of light, such as its wave-particle duality, to induce interference...

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Researchers Develop Energy-Efficient Probabilistic Computer by Combining CMOS with Stochastic Nanomagnet

Researchers develop energy-efficient computer by combining CMOS with stochastic nanomagnet
A schematic illustrating the difference in the current deterministic CMOS computer (a), near-future heterogeneous version of the probabilistic computer, and (c) the final form of the probabilistic computer fully based on the spintronics technology. The table on the right side represents the comparison between them in terms of the chip area, energy consumption, and manufacturability. Credit: Shunsuke Fukami and Kerem Camsari

Researchers at Tohoku University and the University of California, Santa Barbara, have unveiled a probabilistic computer prototype. Manufacturable with a near-future technology, the prototype combines a complementary metal-oxide semiconductor (CMOS) circuit with a limited number of stochastic nanomagnets, creating a heterogeneous probabilistic computer.

Developin...

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Metasurface Antenna could enable Future 6G Communications Networks

Metasurface antenna could enable future 6G communications networks
DMA prototype 1. Credit: University of Glasgow

A team led by researchers from the University of Glasgow has developed an innovative wireless communications antenna that combines the unique properties of metamaterials with sophisticated signal processing to deliver a new peak of performance.

In a paper published in the IEEE Open Journal of Antennas and Propagation, titled “60 GHz Programmable Dynamic Metasurface Antenna (DMA) for Next-Generation Communication, Sensing, and Imaging Applications: From Concept to Prototype,” the researchers showcase their development of a prototype digitally coded dynamic metasurface antenna, or DMA, controlled through high-speed field-programmable gate array (FPGA).

Their DMA is the first in the world designed and demonstrated at the operating frequ...

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