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arXiv · 1511.05251

Feasible logic Bell-state analysis with linear optics

Lan Zhou·Yu-Bo Sheng
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Abstract

We describe a feasible logic Bell-state analysis protocol by employing the logic entanglement to be the robust concatenated Greenberger-Horne-Zeilinger (C-GHZ) state. This protocol only uses polarization beam splitters and half-wave plates, which are available in current experimental technology. We can conveniently identify two of the logic Bell states. This protocol can be easily generalized to the arbitrary C-GHZ state analysis. We can also distinguish two $N$-logic-qubit C-GHZ states. As the previous theory and experiment both showed that the C-GHZ state has the robustness feature, this logic Bell-state analysis and C-GHZ state analysis may be essential for linear-optical quantum computation protocols whose building blocks are logic-qubit entangled state.

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Lan Zhou, Yu-Bo Sheng. 2015-11-17. Feasible logic Bell-state analysis with linear optics. https://arxiv.org/abs/1511.05251

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