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Autoresonant Excitation of Antiproton Plasmas
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2011 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 106, no 2, 025002- p.Article in journal (Refereed) Published
Abstract [en]

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.
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Astronomy, Astrophysics and Cosmology
URN: urn:nbn:se:su:diva-54213DOI: 10.1103/PhysRevLett.106.025002ISI: 000286743900006OAI: diva2:392315
authorCount :37Available from: 2011-01-26 Created: 2011-01-26 Last updated: 2012-01-25Bibliographically approved

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Jonsell, Svante
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Department of Physics
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