Visualization of Electron Dynamics on Liquid Helium

An international team led by Lancaster University has recently discovered how electrons can rapidly move to-and-fro across a quantum surface when driven by external forces. Experiments in Riken, Japan, revealed unusual oscillations whose frequencies varied in time. Analysis of the data by researchers showed that the electrons move in part-circular and part-radial patterns of motion in the vacuum above the liquid surface, and the surface itself moves gently in up-and-down vertical motion. The findings could have potential applications for quantum computing and the study of living systems.

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