中国物理B ›› 2006, Vol. 15 ›› Issue (10): 2320-2323.doi: 10.1088/1009-1963/15/10/021

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Implementing the Deutsch--Jozsa algorithm by using Schr?dinger cat states in cavity QED

杨榕灿, 李洪才, 林　秀, 陈美香   

  1. School of Physics and Opto-Electronic Technology, Fujian Normal University,Fuzhou 350007, China
  • 收稿日期:2005-12-28 修回日期:2006-04-15 出版日期:2006-10-20 发布日期:2006-10-20
  • 基金资助:
    Project supported by the National Natural Science Foundation (Grant No 10574022), and the Funds of the Natural Science of Fujian Province, China (Grant No Z0512006).

Implementing the Deutsch--Jozsa algorithm by using Schrödinger cat states in cavity QED

Yang Rong-Can(杨榕灿)†, Li Hong-Cai(李洪才), Lin Xiu(林秀), and Chen Mei-Xiang(陈美香)   

  1. School of Physics and Opto-Electronic Technology, Fujian Normal University,Fuzhou 350007, China
  • Received:2005-12-28 Revised:2006-04-15 Online:2006-10-20 Published:2006-10-20
  • Supported by:
    Project supported by the National Natural Science Foundation (Grant No 10574022), and the Funds of the Natural Science of Fujian Province, China (Grant No Z0512006).

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摘要： We propose a scheme to implement the Deutsch--Jozsa algorithm by using Schr\"{o}dinger cat states in cavity quantum electron-dynamics (QED). The scheme is based on the Raman interaction of a degenerate three-level \Lambda -type atom with a coherent state in a cavity. By using Schr\"{o}dinger cat states, the atomic spontaneous emission can be minimized and the Hadamard transformation in our scheme is not needed.

关键词: cavity QED, Schr\"{o}dinger cat states, Deutsch--Jozsa algorithm

Abstract: We propose a scheme to implement the Deutsch--Jozsa algorithm by using Schr?dinger cat states in cavity quantum electron-dynamics (QED). The scheme is based on the Raman interaction of a degenerate three-level $\Lambda$ -type atom with a coherent state in a cavity. By using Schr?dinger cat states, the atomic spontaneous emission can be minimized and the Hadamard transformation in our scheme is not needed.

Key words: cavity QED, Schr?dinger cat states, Deutsch--Jozsa algorithm

中图分类号:  (Cavity quantum electrodynamics; micromasers)

  • 42.50.Pq
03.67.Lx (Quantum computation architectures and implementations) 42.50.Gy (Effects of atomic coherence on propagation, absorption, and Amplification of light; electromagnetically induced transparency and Absorption)