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    Quantum Breakthrough when Light makes Materials Magnetic

    April 11, 2024, Categories  Physics

    The laser light is circularly polarized. Image created by AI
    The laser light is circularly polarized, i.e. the light has the shape of a “corkscrew”. When laser light with this type of polarization enters a material, it transfers its circular polarization to the atoms in it, by making them rotate and generate atomic currents. If the frequency of the light matches the frequency of vibration of the atoms, the effect is enhanced and a relatively large magnetism is generated. (AI generated image by Alexander Balatsky)

    The potential of quantum technology is huge but is today largely limited to the extremely cold environments of laboratories...

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