Fault-tolerant Quantum Computation with Highly Verified Logical Cluster States

Details Fault-tolerant Quantum Computation with Highly Verified Logical Cluster States Fault-tolerant Quantum Computation with Highly Verified Logical Cluster States

2006-11-15

arxiv.org/abs/quant-ph/0611160v1

Physics

Quantum Physics

4pages, 7figures

Scientific paper

We investigate a scheme of fault-tolerant quantum computation based on the cluster model. Logical qubits are encoded by a suitable code such as the Steane's 7-qubit code. Cluster states of logical qubits are prepared by post-selection through verification at high fidelity level, where the unsuccessful ones are discarded without recovery operation. Then, gate operations are implemented by transversal measurements on the prepared logical cluster states. The noise threshold is improved significantly by making the high fidelity preparation and transversal measurement. It is estimated to be about 3% by a numerical simulation.

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