Abstract
We present two schemes to realize four- and five-photon polarization-entangled cluster state analysis. For four- and five-photon polarization cluster states, the complete bases are composed of 16 and 32 orthogonal state vectors, respectively. To distinguish all of these orthogonal bases completely and nondestructively, a parity analyzer, a polarization analyzer, and two cluster state phase analyzers are designed with some simple linear optical elements and auxiliary atoms trapped in cavities. After implementing the nondestructive cluster analysis process, the cluster states are preserved and thus could be used again in other schemes. The investigations of the fidelities show that our schemes are feasible under the current experimental technology. Our proposed schemes may be useful in multiparticle teleportation, quantum dense coding, and other quantum information processing tasks.
© 2016 Optical Society of America
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