Research on information lossless teleportation via the W states

Abstract

In this article, a protocol for information lossless teleportation using W states is proposed. Firstly, the information lossless teleportation of an unknown state with a maximally entangled W-state channel, which protects the original unknown state information even in case of teleportation failure is investigated. Next, we generalise our scheme to non-maximally entangled W-state channels. Finally, the principle of the proposed scheme is validated by performing experiments on the quantum circuit simulator Quirk. Our study shows that W states can be used to teleport any quantum state without information loss through single-qubit measurements and local unitary operations.