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This research generalizes Landau's theory to show how "twisting" electron wave functions can induce microwave photon emission even in regions with negligible magnetic fields. The findings challenge classical expectations regarding energy conservation and radiation in non-uniform fields, offering new pathways for optimizing particle accelerators and microscopes. By linking radiation output directly to the geometry of quantum states, this work advances fundamental understanding of electron dynamics at field boundaries.

Sources coveringQuantum Zeitgeist, Quantum Computing Report, miragenews.com

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ITMO’s Faculty of Physics finds electrons ‘twist’ to emit light without magnets

Quantum ZeitgeistSeptember 8, 20265 min read

ITMO physicists explain how electrons can emit microwave photons without magnetic fields, generalizing Landau’s theory.

ITMO University physicists have demonstrated that electrons can emit microwave radiation photons even without a magnetic field, a phenomenon considered impossible under classical physics. The team’s calculations generalize the work of Lev Landau, who previously showed electron motion is quantized in a magnetic field, by examining behavior at the field’s edge. Researchers focused on how changing an electron’s wave properties, essentially “twisting” them, can lead to photon emission, with implications for improving particle accelerators and microscopes. “An interesting aspect of our work is that it considers several geometric effects,” said Igor…

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