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T-junction ion trap array for two-dimensional ion shuttling, storage, and manipulation

Appl. Phys. Lett. 88, 034101 (2006); doi:10.1063/1.2164910

Published 17 January 2006

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W. K. Hensinger, S. Olmschenk, D. Stick, D. Hucul, M. Yeo, M. Acton, L. Deslauriers, and C. Monroe
FOCUS Center and Department of Physics, University of Michigan, Ann Arbor, Michigan 48109

J. Rabchuk
Department of Physics, Western Illinois University, Macomb, Illinois 61455
We demonstrate a two-dimensional 11-zone ion trap array, where individual laser-cooled atomic ions are stored, separated, shuttled, and swapped. The trap geometry consists of two linear rf-ion trap sections that are joined at a 90° angle to form a T-shaped structure. We shuttle a single ion around the corners of the T-junction and swap the positions of two crystallized ions using voltage sequences designed to accommodate the nontrivial electrical potential near the junction. Full two-dimensional control of multiple ions demonstrated in this system may be crucial for the realization of scalable ion trap quantum computation and the implementation of quantum networks. ©2006 American Institute of Physics
History: Received 15 August 2005; accepted 22 November 2005; published 17 January 2006
Permalink: http://link.aip.org/link/?APPLAB/88/034101/1
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KEYWORDS and PACS

Keywords
PACS
  • 32.80.Pj
    Optical cooling of atoms; trapping
  • 42.50.Vk
    Mechanical effects of light on atoms, molecules, electrons, and ions
  • YEAR: 2006

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PUBLICATION DATA

ISSN:
0003-6951 (print)   1077-3118 (online)
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REFERENCES (16)
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  12. The voltages are produced using analog output cards (National Instruments 6733), amplified using high-voltage operational-amplifier circuits (Apex, PA85A) and can be slewed over 10  V in about 1  µs.
  13. It is not necessary to simulate the ion dynamics using quantum evolution as the typical action of motion is much larger than Planck's constant, see, e.g., W. K. Hensinger, N. R. Heckenberg, G. J. Milburn, and H. Rubinsztein-Dunlop, J. Opt. B: Quantum Semiclassical Opt. 5, R83 (2003).
  14. Background heating rates during shuttling operations are neglected here, as they are expected to act on a much slower timescale; however, spectral noise densities for shallow traps (that may occur during shuttling) are expected to be larger, with concomitant heating rates. Future studies will address these issues.
  15. Asymmetries between left- and right-turn voltage sequences are observed and may be attributed to static bias fields or known misalignments of the three electrode layers resulting from the manual trap assembly.
  16. J. P. Home and A. M. Steane, quant-ph/0411102.

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