Quantum Physics

    

Ultrafast Electron Camera in Molecules

Authors: George Rajna

High-speed "electron cameras" can detect tiny molecular movements in a material by scattering a powerful beam of electrons off a sample. [40] The tool is an instrument for ultrafast electron diffraction (MeV-UED). It uses a beam of highly energetic electrons to probe matter and is especially useful for understanding atomic processes occurring on timescales as short as about 100 femtoseconds, millionths of a billionth of a second. [39] Princeton researchers have demonstrated a new way of making controllable "quantum wires" in the presence of a magnetic field, according to a new study published in Nature. [38]

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[v1] 2020-04-11 07:22:44

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