中国物理B ›› 2014, Vol. 23 ›› Issue (5): 50307-050307.doi: 10.1088/1674-1056/23/5/050307

• GENERAL • 上一篇    下一篇

Cavity-assisted quantum computing in a silicon nanostructure

唐宝a, 秦豪a, 张融a, 刘金明b, 薛鹏a b   

  1. a Department of Physics, Southeast University, Nanjing 211189, China;
    b State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, China
  • 收稿日期:2013-07-21 修回日期:2013-11-20 出版日期:2014-05-15 发布日期:2014-05-15
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11004029 and 11174052), the Ph. D. Program of the Ministry of Education of China, the Excellent Young Teachers Program of Southeast University, China, the National Basic Research Program of China (Grant No. 2011CB921203), and the Open Fund from the State Key Laboratory of Precision Spectroscopy of East China Normal University, China.

Cavity-assisted quantum computing in a silicon nanostructure

Tang Bao (唐宝)a, Qin Hao (秦豪)a, Zhang Rong (张融)a, Liu Jin-Ming (刘金明)b, Xue Peng (薛鹏)a b   

  1. a Department of Physics, Southeast University, Nanjing 211189, China;
    b State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, China
  • Received:2013-07-21 Revised:2013-11-20 Online:2014-05-15 Published:2014-05-15
  • Contact: Xue Peng E-mail:gnep.eux@gmail.com
  • About author:03.67.Ac; 42.50.Pq; 74.50.+r
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11004029 and 11174052), the Ph. D. Program of the Ministry of Education of China, the Excellent Young Teachers Program of Southeast University, China, the National Basic Research Program of China (Grant No. 2011CB921203), and the Open Fund from the State Key Laboratory of Precision Spectroscopy of East China Normal University, China.

摘要: We present a scheme of quantum computing with charge qubits corresponding to one excess electron shared between dangling-bond pairs of surface silicon atoms that couple to a microwave stripline resonator on a chip. By choosing a certain evolution time, we propose the realization of a set of universal single- and two-qubit logical gates. Due to its intrinsic stability and scalability, the silicon dangling-bond charge qubit can be regarded as one of the most promising candidates for quantum computation. Compared to the previous schemes on quantum computing with silicon bulk systems, our scheme shows such advantages as a long coherent time and direct control and readout.

关键词: quantum computing, dangling-bond state

Abstract: We present a scheme of quantum computing with charge qubits corresponding to one excess electron shared between dangling-bond pairs of surface silicon atoms that couple to a microwave stripline resonator on a chip. By choosing a certain evolution time, we propose the realization of a set of universal single- and two-qubit logical gates. Due to its intrinsic stability and scalability, the silicon dangling-bond charge qubit can be regarded as one of the most promising candidates for quantum computation. Compared to the previous schemes on quantum computing with silicon bulk systems, our scheme shows such advantages as a long coherent time and direct control and readout.

Key words: quantum computing, dangling-bond state

中图分类号:  (Quantum algorithms, protocols, and simulations)

  • 03.67.Ac
42.50.Pq (Cavity quantum electrodynamics; micromasers) 74.50.+r (Tunneling phenomena; Josephson effects)