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A two-dimensional lattice ion trap for quantum simulation

J. Appl. Phys. 105, 013114 (2009); doi:10.1063/1.3056227

Published 13 January 2009

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Robert J. Clark, Tongyan Lin, Kenneth R. Brown, and Isaac L. Chuang
Department of Physics and Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
Quantum simulations of spin systems could enable the solution of problems that otherwise require infeasible classical resources. Such a simulation may be implemented using a well-controlled system of effective spins, such as a two-dimensional lattice of locally interacting ions. We propose here a layered planar rf trap design that can be used to create arbitrary two-dimensional lattices of ions. The design also leads naturally to ease of microfabrication. As a first experimental demonstration, we confine 88Sr+ ions in a millimeter-scale lattice trap and verify numerical models of the trap by measuring the motional frequencies. We also confine 440 nm diameter charged microspheres and observe ion-ion repulsion between ions in neighboring lattice sites. Our design, when scaled to smaller ion-ion distances, is appropriate for quantum simulation schemes, e.g., that of Porras and Cirac [Phys. Rev. Lett. 92, 207901 (2004)]. We note, however, that in practical realizations of the trap, an increase in the secular frequency with decreasing ion spacing may make a coupling rate that is large relative to the decoherence rate in such a trap difficult to achieve. ©2009 American Institute of Physics
History: Received 17 September 2008; accepted 17 November 2008; published 13 January 2009
Permalink: http://link.aip.org/link/?JAPIAU/105/013114/1
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KEYWORDS and PACS

Keywords
PACS
  • 29.25.-t
    Particle sources and targets
  • 75.25.+z
    Spin arrangements in magnetically ordered materials
  • 74.62.Bf
    Effects of material synthesis, crystal structure, and chemical composition on superconducting transition temperature
  • YEAR: 2009

PUBLICATION DATA

ISSN:
0021-8979 (print)   1089-7550 (online)
Publisher:
AIP is a member of CrossRef AIP

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