Cluster-state quantum computing in optical fibers

A scheme for the implementation of the cluster-state model of quantum computing in optical fibers, which enables the feed-forward feature, is proposed. This scheme uses the time-bin encoding of qubits. Following previously suggested methods of applying arbitrary one-qubit gates in optical fibers, two different ways for the realization of fusion gate types I and II for cluster production are proposed: a fully time-bin-based encoding scheme and a combination of time-bin and polarization-based encoding. Also, the methods of measurement in any desired bases for the purpose of processing of cluster-state computing for both these encodings are explained. (c) 2007 Optical Society of America.