• The phantom heat of empty space may soon be detectable

    From Jan Panteltje@alien@comet.invalid to sci.physics on Thu Sep 25 07:20:27 2025
    From Newsgroup: sci.physics

    The phantom heat of empty space might soon be detectable
    Solves a long-standing challenge in fundamental physics.
    Date:
    September 24, 2025
    Source:
    Hiroshima University
    Summary:
    A Hiroshima University team has designed a feasible way to detect the Unruh effect, where acceleration turns quantum vacuum fluctuations into observable particles. By using superconducting Josephson junctions, they can achieve extreme accelerations that create a detectable Unruh temperature. This produces measurable voltage jumps, providing a clear signal of the effect. The breakthrough could transform both fundamental physics and quantum technology.
    Link:
    https://www.sciencedaily.com/releases/2025/09/250924012234.htm
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