Network controlled teleportation of N -qubit state
Wenxue Chen, Xiu-Lao Tian, Ming‐Liang Hu · Journal of Modern Optics · 2010
By employing the tensor analysis technique, we propose three schemes of controlled teleportation: series controlled, circular controlled and network controlled teleportation. We discuss the necessary and sufficient condition for realizing these schemes, in which we use a general two-qubit entangled state instead of the GHZ state as the communication channel. This enables successful implementation of teleportation without using the Hadamard operation.