3D light fields push electrons into quantum states previously beyond experimental reach
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Physicists at the University of Oldenburg have created three-dimensional light fields by superimposing two ultrashort laser pulses that converge from different directions. This technique allows them to excite electrons into quantum states that were previously impossible to reach in experiments. Dr. Matthias Wollenhaupt, who leads the research team, explains that their method generates electronic quantum states that existed only in theory and makes them spatially visible.