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AIP conference proceedings

Process tomography of elementary gates in optical one-way quantum computing

Yuuki Tokunaga, S. Okamoto, Rikizo Ikuta, Takashi Yamamoto, Masato Koashi, N. Imoto, Timothy C. Ralph, Ping Koy Lam

Published Jan 1, 2011• 0 citations
Publisher

Abstract

We demonstrate quantum process tomography of experimental photonic one‐way quantum computing. We investigate one‐qubit rotation gates and the two‐qubit controlled‐phase gate and the process matrix is derived from the maximally likelihood estimation. From the completely reconstructed process matrices, we can evaluate several gate performances such as process fidelity, purity, and entanglement capability.

DOI
10.1063/1.3630190

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We demonstrate quantum process tomography of experimental photonic one‐way quantum computing. We investigate one‐qubit rotation gates and the two‐qubit controlled‐phase gate and the process matrix is derived from the maximally likelihood estimation. From the completely reconstructed process matrices, we can evaluate several gate performances such as process fidelity, purity, and entanglement capability.
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