Two-to-one quantum teleportation protocol and its application

In this paper, we propose a two-to-one quantum teleportation protocol with three-particle entangled states. Two senders teleport the product of their quantum states to one receiver. The quantum product is of two types. The receiver will recover one type with probability 12. We further apply our protocol to send the message secretly. The receiver can recover the original message with probability 1-12k after performing our protocol k times.