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Researchers at Harvard University and Arizona State University have demonstrated laser cooling of polyatomic YbOH molecules, in a first step toward using these molecules to make precision measurements of the electron’s electric dipole moment (eEDM). The researchers also showed that laser light could be used to enhance the chemical reactions that produce YbOH. Their work was augmented by a related effort, carried out by researchers at Caltech and Temple University, to enhance the brightness of a beam of cold YbOH.
Using a combination of precisely tuned lasers and magnetic fields, the scientists demonstrated laser cooling of a beam of gaseous YbOH in one dimension to temperatures as low as several microkelvin. Because of the…READ MORE