中国物理B ›› 2012, Vol. 21 ›› Issue (4): 44205-044205.doi: 10.1088/1674-1056/21/4/044205

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

苏石磊,王媛,郭奇,王洪福,张寿   

  • 收稿日期:2011-07-20 修回日期:2011-09-10 出版日期:2012-02-29 发布日期:2012-02-29
  • 通讯作者: 张寿,szhang@ybu.edu.cn E-mail:szhang@ybu.edu.cn

Generating a four-photon polarization-entangled cluster state with homodyne measurement via cross-Kerr nonlinearity

Su Shi-Lei(苏石磊), Wang Yuan(王媛), Guo Qi(郭奇), Wang Hong-Fu(王洪福), and Zhang Shou(张寿)   

  1. Department of Physics, College of Science, Yanbian University, Yanji 133002, China
  • Received:2011-07-20 Revised:2011-09-10 Online:2012-02-29 Published:2012-02-29
  • Contact: Zhang Shou,szhang@ybu.edu.cn E-mail:szhang@ybu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 61068001 and 11064016).

Abstract: We propose a protocol to generate a four-photon polarization-entangled cluster state with cross-Kerr nonlinearity by using the interference of polarized photons. The protocol is based on optical elements, cross-Kerr nonlinearity, and homodyne measurement, therefore it is feasible with current experimental technology. The success probability of our protocol is optimal, this property makes our protocol more efficient than others in the applications of quantum communication.

Key words: cluster state, homodyne measurement, cross-Kerr nonlinearity

中图分类号:  (Quantum optics)

  • 42.50.-p
03.67.-a (Quantum information) 42.65.-k (Nonlinear optics)