Teleportation of an Unknown Quantum State via Partly Entangled States
Feng Xun-Li; Gong Shang-Qing; Wang Zhong-Yang; Xu Zhi-Zhan; Feng Xun-Li; Laboratory for High Intensity Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800; Gong Shang-Qing; Laboratory for High Intensity Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800; Wang Zhong-Yang; Laboratory for High Intensity Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800; Xu Zhi-Zhan; Laboratory for High Intensity Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800
Журнал:
Chinese Physics Letters
Дата:
2000-10-01
Аннотация:
The teleportation of an unknown quantum state from one observer to another is of great importance in quantum information. In the standard teleportation scheme, a maximally entangled state is demanded. However, it is difficult to prepare such states in practice, and real entangled states are always partly entangled. We present a scheme to teleport an unknown quantum state using two partly entangled states. We show that the teleportation can be realized with a certain probability.
200.3Кб