A new scheme for probabilistic teleportation and its potential   applications
  We propose a novel scheme for probabilistic teleportation when the information of the partially entangled state is only available for the sender. This is in contrast with the fact that the receiver must know the non-maximally entangled state in previous typical schemes for the teleportation. Additionally, we illustrate two potential applications of the novel scheme to probabilistically teleport an unknown two-level quantum state from a sender to a receiver with the help of an assistant, who plays distinguishable roles under different communication conditions, and the applications indicate that our proposal could improve the security and enlarge the applied range of probabilistic teleportation. 
Jiahua Wei, Hong-Yi Dai, Ming Zhang
quant-ph