Adiabatic cooling is shown to be a simple and effective method to cool many charged particles in a trap to very low temperatures. Up to are cooled to 3.5 K— times more cold and a 3 times lower temperature than previously reported. A second cooling method cools plasmas via the synchrotron radiation of embedded (with many fewer than ) in preparation for adiabatic cooling. No are lost during either process—a significant advantage for rare particles.
- Received 1 December 2010
© 2011 American Physical Society