Teleportation of a three-particle entangled W state through two-particle entangl ed quantum channels
Yi-Zhuang Zheng, Dai Ling-Yu, Guo Guang-Can, (1)温州师范学院物理与电子信息科学系,温州 325027; (2)温州师范学院物理与电子信息科学系,温州 325027;中国科学技术大学量子信息重点实验室,合肥 230026; (3)中国科学技术大学量子信息重点实验室,合肥 230026 · Acta Physica Sinica · 2003
We propose a scheme for teleportation of a three-particle entangled W state through two-particle entangled quantum channels. Firstly, the maximally entangled states are taken as quantum channels, then, the case of nonmaximally entangled channels is considered. We find that when the channels are nonmaximally entangled states, by introducing an ancillary qubit and constructing an unitary transformation properly, teleportation of three-particle entangled W state can be implemented with certain probability.