Key Highlights
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Researchers have found that the absence of the first “Shapiro step” in microwave-irradiated Josephson junctions, often thought to be a signature of exotic Majorana particles, can be explained by the inherent non-linear electrical behavior of the junctions themselves. This suggests that a key piece of evidence for Majorana states, which are crucial for quantum computing, might be more common and less exotic than previously believed.
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The study was conducted on junctions made of aluminum and the material tungsten ditelluride (WTe2), which are considered to have low-to-moderate transparency for electrical currents. This finding is important because it provides a simpler, alternative explanation for experimental results, potentially saving researchers from misinterpreting their data and redirecting the search for true Majorana particles.
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