Teleportation of a multiqubit state by an entangled qudit channel
Yi-Zhuang Zheng, Gu Yong-Jian, Guichu Wu, Guo Guang-Can · Chinese Physics · 2003
We investigate the problem of teleportation of an M -qubit state by using an entangled qudit pair as a quantum channel and show that the teleportation of a multiparticle state can correspond to the teleportation of a multi-dimensional state. We also introduce a quantum-state converter composed of beamsplitter arrays, on/off-detectors and cross-Kerr couplers and demonstrate that the state conversion from an M -qubit to an N -dimensional qudit and vice versa can be implemented with this converter, where N = 2 M . Based on this, an experimentally feasible scheme for the teleportation of an M -qubit via an entangled N -level qudit pair channel is proposed.