Multiqubit Quantum Teleportation
  We provide a class of six-qubit states for three-qubit perfect teleportation. These states include the six-qubit cluster states as a special class. We generalize this class of six-qubit states to 2n-qubit pure states for n-qubit teleportation, n >=1. These states can be also used for 2n bit classical information transmission in dense coding. 
Ming-Jing Zhao, Zong-Guo Li, Xianqing Li-Jost, and Shao-Ming Fei
quant-ph