Autoresonant Excitation of Antiproton Plasmas
2011 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 106, no 2, 025002- p.Article in journal (Refereed) Published
We demonstrate controllable excitation of the center-of-mass longitudinal motion of a thermal antiproton plasma using a swept-frequency autoresonant drive. When the plasma is cold, dense, and highly collective in nature, we observe that the entire system behaves as a single-particle nonlinear oscillator, as predicted by a recent theory. In contrast, only a fraction of the antiprotons in a warm plasma can be similarly excited. Antihydrogen was produced and trapped by using this technique to drive antiprotons into a positron plasma, thereby initiating atomic recombination
Place, publisher, year, edition, pages
2011. Vol. 106, no 2, 025002- p.
Astronomy, Astrophysics and Cosmology
IdentifiersURN: urn:nbn:se:su:diva-54213DOI: 10.1103/PhysRevLett.106.025002ISI: 000286743900006OAI: oai:DiVA.org:su-54213DiVA: diva2:392315
authorCount :372011-01-262011-01-262012-01-25Bibliographically approved