Scheme for entanglement concentration of unknown W class states via linear optics
Zhang Li-hua, Dong Ping, Zhuo‐Liang Cao · Chinese Physics · 2007
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.