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Article overview
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Ellipsoidal Coulomb Crystals in a Linear Radiofrequency Trap | U. Fröhlich
; B. Roth
; S. Schiller
; | Date: |
9 Dec 2004 | Subject: | Plasma Physics; Atomic Physics | physics.plasm-ph physics.atom-ph | Abstract: | A static quadrupole potential breaks the cylindrical symmetry of the effective potential of a linear rf trap. For a one-component fluid plasma at low temperature, the resulting equilibrium charge distribution is predicted to be an ellipsoid. We have produced laser-cooled Be$^+$ ellipsoidal ion crystals and found good agreement between their shapes and the cold fluid prediction. In two-species mixtures, containing Be$^+$ and sympathetically cooled ions of lower mass, a sufficiently strong static quadrupole potential produces a spatial separation of the species. | Source: | arXiv, physics/0412054 | Services: | Forum | Review | PDF | Favorites |
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