Quantum Secure Communication Scheme with W State

Wang Jian, Zhang Quan, Tang Chao-Jing

We present a quantum secure communication scheme using three-qubit W state. It is unnecessary for the present scheme to use alternative measurement or Bell basis measurement. Compared with the quantum secure direct communication scheme proposed by Cao et al . [H.J. Cao and H.S. Song, Chin. Phys. Lett. 23 (2006) 290], in our scheme, the detection probability for an eavesdropper's attack increases from 8.3% to 25%. We also show that our scheme is secure for a noise quantum channel.

Jaewoo Joo, Young Jai Park, Jinhyoung Lee +2 more

Chitra Shukla, Anindita Banerjee, Anirban Pathak

Xiu Xiao

A theoretical scheme of quantum secure communication using a class of three-particle W states is proposed. In the scheme,two communicators may communicate after they test the security of the quantum channel.The receiver can obtain the secret message determinately if the quantum channel is safe.The present scheme can be realized without using teleportation.

Dong, LI ., Xiu Xiu +5 more

Li Dong, Xiu Xiao-Ming, Gao Ya-Jun +1 more

A theoretical scheme of quantum secure communication using a class of three-particle W states is proposed. In the scheme, two communicators may communicate after they test the security of the quantum channel. The receiver can obtain the secret message determinately if the quantum channel is safe. The present scheme can be realized without using teleportation.