Evaporative Cooling of Antiprotons to Cryogenic Temperatures
2010 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 105, no 1, 013003- p.Article in journal (Refereed) Published
We report the application of evaporative cooling to clouds of trapped antiprotons, resulting in plasmas with measured temperature as low as 9 K. We have modeled the evaporation process for charged particles using appropriate rate equations. Good agreement between experiment and theory is observed, permitting prediction of cooling efficiency in future experiments. The technique opens up new possibilities for cooling of trapped ions and is of particular interest in antiproton physics, where a precise CPT test on trapped antihydrogen is a long-standing goal.
Place, publisher, year, edition, pages
2010. Vol. 105, no 1, 013003- p.
Atom and Molecular Physics and Optics
IdentifiersURN: urn:nbn:se:su:diva-46180DOI: 10.1103/PhysRevLett.105.013003OAI: oai:DiVA.org:su-46180DiVA: diva2:371939