Toward a more economical cluster state quantum computation
M. S. Tame, M. Paternostro, M. S. Kim, V. Vedral
Abstract
We assess the effects of an intrinsic model for imperfections in cluster states by introducing noisy cluster states and characterizing their role in the one-way model for quantum computation. The action of individual dephasing channels on cluster qubits is also studied. We show that the effect of non-idealities is limited by using small clusters, which requires compact schemes for computation. In light of this, we address an experimentally realizable four-qubit linear cluster which simulates a controlled- NOT ( CNOT).
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