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Hyperfine Interactions

Structure and control of Coulomb crystals in a Penning trap

Xinyi Huang, J. J. Bollinger, Wayne M. Itano, Jun Tan, B. M. Jelenkovic, T. B. Mitchell, David J. Wineland

Published Nov 1, 1998• 2 citations
Publisher
DOI
10.1023/a:1012628101250

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Results demonstrating laser cooling and observation of individual calcium ions in a Penning trap are presented. We show that we are able to trap, cool, image and manipulate the shape of very small ensembles of ions sufficiently well to produce two-ion 'Coulomb crystals' aligned along the magnetic field of a Penning trap. Images are presented which show the individual ions to be resolved in a two-ion crystal. A distinct change in the configuration of such a crystal is observed as the experimental parameters are changed. These structures could eventually be used as building blocks in a Penning trap based quantum computer.