[10] Liu Dan, Pei Changxin, Quan Dongxiao, et al. A new quantum secure direct communication scheme with authentication ［J］. Chin. Phys. Lett., 2010, 27(5): 050306-1-050306-3.
[11] Goebel A M, Wagenknecht C, Zhang Qiang, et al. Multistage entanglement swapping ［J］. Phys. Rev. Lett., 2008, 101(8): 080403-080406.
[14] Bennett C H, Brassard G, Crepeau C, et al. Teleporting an unknown quantum state via dual classical and Einstein-Podolsky-Rosen channels ［J］. Phys. Rev. Lett., 1993, 70(13): 1895-1899.
