中国物理B ›› 2013, Vol. 22 ›› Issue (5): 50307-050307.doi: 10.1088/1674-1056/22/5/050307

• GENERAL • 上一篇    下一篇

Generation of four-atom Greenberger-Horn-Zeilinger state via adiabatic passage

张春玲, 陈美锋   

  1. Laboratory of Quantum Optics, Department of Physics, Fuzhou University, Fuzhou 350002, China
  • 收稿日期:2012-09-16 修回日期:2012-12-03 出版日期:2013-04-01 发布日期:2013-04-01
  • 基金资助:
    Project supported by the National Basic Research Program of China (Grant No. 2012CB921601), the National Natural Science Foundation of China (Grant No. 10974028), and the Doctoral Foundation of the Ministry of Education of China (Grant No. 20093514110009).

Generation of four-atom Greenberger-Horn-Zeilinger state via adiabatic passage

Zhang Chun-Ling (张春玲), Chen Mei-Feng (陈美锋)   

  1. Laboratory of Quantum Optics, Department of Physics, Fuzhou University, Fuzhou 350002, China
  • Received:2012-09-16 Revised:2012-12-03 Online:2013-04-01 Published:2013-04-01
  • Contact: Zhang Chun-Ling E-mail:mzhangchunling@163.com
  • Supported by:
    Project supported by the National Basic Research Program of China (Grant No. 2012CB921601), the National Natural Science Foundation of China (Grant No. 10974028), and the Doctoral Foundation of the Ministry of Education of China (Grant No. 20093514110009).

摘要: We propose a scheme to generate a Greenberger-Horn-Zeilinger (GHZ) state of four atoms trapped in a two-mode optical cavity via an adiabatic passage. The scheme is robust against moderate fluctuations of the experimental parameters. Numerical calculations show that the excited probabilities of both the cavity modes and the atoms are tiny and depend on the pulse peaks of the classical laser fields. For certain decoherence due to the atomic spontaneous emission and the cavity decay, there exits a range of pulse peaks to get a high fidelity.

关键词: Greenberger-Horn-Zeilinger (GHZ) state, adiabatic passage, cavity quantum electrodynamics

Abstract: We propose a scheme to generate a Greenberger-Horn-Zeilinger (GHZ) state of four atoms trapped in a two-mode optical cavity via an adiabatic passage. The scheme is robust against moderate fluctuations of the experimental parameters. Numerical calculations show that the excited probabilities of both the cavity modes and the atoms are tiny and depend on the pulse peaks of the classical laser fields. For certain decoherence due to the atomic spontaneous emission and the cavity decay, there exits a range of pulse peaks to get a high fidelity.

Key words: Greenberger-Horn-Zeilinger (GHZ) state, adiabatic passage, cavity quantum electrodynamics

中图分类号:  (Entanglement production and manipulation)

  • 03.67.Bg
42.50.Dv (Quantum state engineering and measurements) 42.50.Pq (Cavity quantum electrodynamics; micromasers)