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  • Researchers find topological phenomena at high technologically relevant frequencies

    A collaborative new study led by researchers in the School of Arts & Sciences demonstrates topological control capabilities in an acoustic system, with implications for applications such as 5G communications and quantum information processing.
    a close up of a needle etching stars into a blue membrane with a Z down the middle
    Schematic of a perfectly transmitted topological acoustic wave being imaged using a microwave microscope. A new study from the lab of Charlie Johnson and colleagues describes topological control capabilities in an acoustic system at high technologically relevant frequencies, work with implications for 5G communications and quantum information processing. (Image: Qicheng Zhang)

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    Image: Pencho Chukov via Getty Images

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    Sep 9, 2025

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    Image: Courtesy of Penn Engineering Today

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