Broadcasting of entanglement in three-particle GHZ state via quantum copying

@inproceedings{Tong2000BroadcastingOE,
  title={Broadcasting of entanglement in three-particle GHZ state via quantum copying},
  author={Zhao-yang Tong and Le-Man Kuang},
  year={2000}
}
We introduce entanglement measures to describe entanglement in a threeparticle system and apply it to studying broadcasting of entanglement in three-particle GHZ state. We show that entanglement of three-qubit GHZ state can be partially broadcasted with the help of local or non-local copying processes. It is found that non-local cloning is much more… CONTINUE READING