Scientific Frontline19h ago
The dual-frequency Paul trap is an advanced radiofrequency trap designed to capture and confine particles with vastly different mass profiles—such as heavy ions and light electrons—within the same apparatus.
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https://www.sflorg.com/2026/04/phy04102601.html
Milestone on the way to creating antihydrogen in Mainz: new dual-frequency Paul trap tested

A new type of radiofrequency trap can capture particles with extremely different requirements and could theoretically hold both types of particles at