摘要
This paper proposes a scheme for entanglement concentration of unknown triparticle W class states with a certain probability. This protocol is mainly based on the coincidences of single-photon detectors and requires single-photon detectors and linear optical elements. The scheme is feasible within current technology.
This paper proposes a scheme for entanglement concentration of unknown triparticle W class states with a certain probability. This protocol is mainly based on the coincidences of single-photon detectors and requires single-photon detectors and linear optical elements. The scheme is feasible within current technology.
基金
Project supported by the Natural Science Foundation of the Education Department of Anhui Province, China （Grant No 2006kj070A） and Anhui Provincial Natural Science Foundation, China （Grant No 03042401） and the Talent Foundation of Anhui University, China.
