Adiabatic Cooling of Antiprotons

G. Gabrielse, W. S. Kolthammer, R. McConnell, P. Richerme, R. Kalra, E. Novitski, D. Grzonka, W. Oelert, T. Sefzick, M. Zielinski, D. Fitzakerley, M. C. George, E. A. Hessels, C. H. Storry, M. Weel, A. Müllers, and J. Walz (ATRAP Collaboration)
Phys. Rev. Lett. 106, 073002 – Published 15 February 2011

Abstract

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 3×106 p¯ are cooled to 3.5 K—103 times more cold p¯ and a 3 times lower p¯ temperature than previously reported. A second cooling method cools p¯ plasmas via the synchrotron radiation of embedded e (with many fewer e than p¯) in preparation for adiabatic cooling. No p¯ are lost during either process—a significant advantage for rare particles.

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  • Received 1 December 2010

DOI:https://doi.org/10.1103/PhysRevLett.106.073002

© 2011 American Physical Society

Authors & Affiliations

G. Gabrielse1,*, W. S. Kolthammer1, R. McConnell1, P. Richerme1, R. Kalra1, E. Novitski1, D. Grzonka2, W. Oelert1, T. Sefzick2, M. Zielinski2, D. Fitzakerley3, M. C. George3, E. A. Hessels3, C. H. Storry3, M. Weel3, A. Müllers4, and J. Walz4 (ATRAP Collaboration)

  • 1Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA
  • 2IKP, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
  • 3Department of Physics and Astronomy, York University, Toronto, Ontario M3J 1P3, Canada
  • 4Institut für Physik, Johannes Gutenberg Universität and Helmholtz Institut Mainz, D-55099 Mainz, Germany

  • *ATRAP Spokesperson. gabrielse@physics.harvard.edu

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Vol. 106, Iss. 7 — 18 February 2011

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