Phys. Rev. Lett. 100, 175002 (2008) [4 pages]

Trapping and Evolution Dynamics of Ultracold Two-Component Plasmas

Abstract

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J.-H. Choi^*, B. Knuffman, X. H. Zhang, A. P. Povilus^†, and G. Raithel
FOCUS Center, Department of Physics, University of Michigan, Ann Arbor, Michigan 48109-1040, USA

Received 14 May 2007; published 28 April 2008

We demonstrate the trapping of a strongly magnetized, quasineutral ultracold plasma in a nested Penning trap with a background field of 2.9 T. Electrons remain trapped in this system for several milliseconds. Early in the evolution, the dynamics are driven by a breathing-mode oscillation in the ionic charge distribution, which modulates the electron trap depth. Over longer times scales, the electronic component undergoes cooling. Trap loss resulting from E×B drift is characterized.

URL:

http://link.aps.org/doi/10.1103/PhysRevLett.100.175002

DOI:

10.1103/PhysRevLett.100.175002

PACS:

52.25.Xz, 37.10.De, 52.27.Aj

^*Present address: MIT-Harvard Center for Ultracold Atoms, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.

^†Present address: Department of Physics, University of California, Berkeley, CA 94720, USA.

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Phys. Rev. Lett. 100, 175002 (2008) [4 pages]

Trapping and Evolution Dynamics of Ultracold Two-Component Plasmas