School of Physics & Material Science, Anhui University, Hefei 230039, China; School of Physics & Material Science, Anhui University, Hefei 230039, China;Department of Physics, Anqing Teachers College, Anqing 246011, China
Abstract:
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.