Fault-Tolerant Topological One-Way Quantum Computation with Probabilistic Two-Qubit Gates

Details Fault-Tolerant Topological One-Way Quantum Computation with Probabilistic Two-Qubit Gates Fault-Tolerant Topological One-Way Quantum Computation with Probabilistic Two-Qubit Gates

2010-08-23

arxiv.org/abs/1008.3752v2

Phys. Rev. Lett. 105 250503 (2010)

Physics

Quantum Physics

4.5 pages, 3 figures; V2: published version

Scientific paper

10.1103/PhysRevLett.105.250503

We propose a scalable way to construct a 3D cluster state for fault-tolerant topological one-way computation (TOWC) even if the entangling two-qubit gates succeed with a small probability. It is shown that fault-tolerant TOWC can be performed with the success probability of the two-qubit gate such as 0.5 (0.1) provided that the conditional error probability of the two-qubit gate is less than 0.040% (0.016%). Furthermore, the resource usage is considerably suppressed compared to the conventional fault-tolerant schemes with probabilistic two-qubit gates.

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