PRITCHARD, Margaret Mary (née Kane) - BarrieToday.com

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Researchers at Los Alamos National Laboratory have observed full saturation and reversal of the hysteresis curve in antiferromagnetic models using programmable quantum annealers. This finding challenges expectations, as antiferromagnets typically resist magnetization, making complete reversal an unusual result. The team detected Barkhausen-like noise, typically associated with ferromagnetic materials, alongside emergent magnetic domains created by quantum fluctuations. These fluctuations mediate magnetic memory within the antiferromagnets, demonstrating a direct link between quantum effects and a material property. The team implemented a sampling-based magnetic hysteresis protocol on these processors to investigate magnetic memory within antiferromagnetic models, revealing unexpected results about how these materials respond to external fields. This approach allows for emulation of magnetic hysteresis experiments, offering a new avenue for studying complex magnetic phenomena.

New bioinformatics application combines curated metabolite–protein intelligence, advanced network analysis and optional AI interpretation to uncover potential disease mechanisms, prioritise therapeutic targets and accelerate multiomics research. New bioinformatics application combines curated metabolite-protein knowledge, advanced network algorithms, interactive exploration, and optional AI interpretation to generate clearer mechanistic hypotheses