中国物理B ›› 2012, Vol. 21 ›› Issue (6): 63701-063701.doi: 10.1088/1674-1056/21/6/063701

• ATOMIC AND MOLECULAR PHYSICS • 上一篇    下一篇

A grooved planar ion trap design for scalable quantum information processing

冀炜邦, 万金银, 成华东, 刘亮   

  1. Key Laboratory for Quantum Optics and Center for Cold Atom Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
  • 收稿日期:2011-09-16 修回日期:2012-01-11 出版日期:2012-05-01 发布日期:2012-05-01
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 1097421).

A grooved planar ion trap design for scalable quantum information processing

Ji Wei-Bang(冀炜邦), Wan Jin-Yin(万金银), Cheng Hua-Dong(成华东), and Liu Liang(刘亮)†   

  1. Key Laboratory for Quantum Optics and Center for Cold Atom Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
  • Received:2011-09-16 Revised:2012-01-11 Online:2012-05-01 Published:2012-05-01
  • Contact: Liu Liang E-mail:liang.liu@siom.ac.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 1097421).

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摘要： We describe a new electrode design for a grooved surface-electrode ion trap, which is fabricated in printed-circuit-board technology with segmented electrodes. This design allows a laser beam to get through the central groove to avoid optical access blocking and laser scattering from the ion trap surface. The confining potentials are modeled both analytically and numerically. We optimize the radio frequency (rf) electrodes and dc electrodes to achieve the maximum trap depth for a given ion height above the trap electrodes. We also compare our design with the reality ion chip MI I for practical considerations. Comparison results show that our design is superior to MI I. This ion trap design may form the basis for large scale quantum computers or parallel quadrupole mass spectrometers.

关键词: ion trapping, microfabrication, quantum information

Abstract: We describe a new electrode design for a grooved surface-electrode ion trap, which is fabricated in printed-circuit-board technology with segmented electrodes. This design allows a laser beam to get through the central groove to avoid optical access blocking and laser scattering from the ion trap surface. The confining potentials are modeled both analytically and numerically. We optimize the radio frequency (rf) electrodes and dc electrodes to achieve the maximum trap depth for a given ion height above the trap electrodes. We also compare our design with the reality ion chip MI I for practical considerations. Comparison results show that our design is superior to MI I. This ion trap design may form the basis for large scale quantum computers or parallel quadrupole mass spectrometers.

Key words: ion trapping, microfabrication, quantum information

中图分类号:  (Ion trapping)

  • 37.10.Ty
85.40.-e (Microelectronics: LSI, VLSI, ULSI; integrated circuit fabrication technology) 03.67.-a (Quantum information)