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Individual addressing of ions using magnetic field gradients in a surface-electrode ion trap

Appl. Phys. Lett. 94, 094103 (2009); doi:10.1063/1.3095520

Published 6 March 2009

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Shannon X. Wang, Jaroslaw Labaziewicz, Yufei Ge, Ruth Shewmon, and Isaac L. Chuang
Department of Physics, Center for Ultracold Atoms, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA
A dense array of ions in microfabricated traps represents one possible way to scale up ion trap quantum computing. The ability to address individual ions is an important component of such a scheme. We demonstrate individual addressing of trapped ions in a microfabricated surface-electrode trap using a magnetic field gradient generated on-chip. A frequency splitting of 310(2) kHz for two ions separated by 5  µm is achieved. Selective single qubit operations are performed on one of two trapped ions with an average of 2.2(±1.0%) crosstalk. Coherence time is reduced by the magnetic field gradient, but the spin-echo technique effectively restores the coherence time. ©2009 American Institute of Physics
History: Received 26 November 2008; accepted 14 February 2009; published 6 March 2009
Permalink: http://link.aip.org/link/?APPLAB/94/094103/1
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KEYWORDS and PACS

Keywords
PACS
  • 03.67.Lx
    Quantum computation architectures and implementations
  • 42.50.-p
    Quantum optics
  • 37.10.Ty
    Ion trapping
  • YEAR: 2009

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ISSN:
0003-6951 (print)   1077-3118 (online)
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