Light Transfers Momentum to Electrons
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light beamPhys Org
•Twisted light gives electrons a spinning kick: Researchers develop a novel way to control quantum interactions
90% Informative
A new paper shows a novel way to use light to give electrons a spinning kick.
The researchers used graphene to puffed up electrons to make them occupy more space.
They reported the results of their experiment on Nov. 26, 2024 , in the journal Nature Photonics .
Researchers at JQI and UMD and Joint Quantum Institute in Maryland studied graphene.
They used light carrying orbital angular momentum that circulated clockwise and counterclockwise.
They flipped the direction of the applied magnetic field and observed the current flip directions.
They also tested sending circularly polarized light, which carries an intrinsic angular momentum, at the sample.
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