Laser-trapping of Rare Element Gets Unexpected Assist
Argonne National LaboratoryArgonne researchers have successfully laser-cooled and trapped atoms of radium "” the first time this rare element has been captured in a magneto-optical trap "” with an assist from an unexpected source. The group of physicists was attempting to trap the rare, radioactive element for studies of time-reversal violation, explained Argonne Compton Postdoctoral Fellow Jeffrey Guest of Argonne's Physics Division. Finding examples of this effect has implications for physics beyond the Standard Model and for explaining why the Big Bang yielded an imbalance between matter and antimatter in the universe.