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arXiv · 1511.00087

Error-rejecting quantum computing with solid-state spins assisted by low-Q optical microcavities

Tao Li·Fu-Guo Deng
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Abstract

We present an efficient proposal for error-rejecting quantum computing with quantum dots (QD) embedded in single-sided optical microcavities based on the interface between the circularly polarized photon and QDs. An almost unity fidelity of the quantum entangling gate (EG) can be implemented with a detectable error that leads to a recycling EG procedure, which improves further the efficiency of our proposal along with the robustness to the errors involved in imperfect input-output processes. Meanwhile, we discuss the performance of our proposal for the EG on two solid-state spins with currently achieved experiment parameters, showing that it is feasible with current experimental technology. It provides a promising building block for solid-state quantum computing and quantum networks.

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Tao Li, Fu-Guo Deng. 2017-01-01. Error-rejecting quantum computing with solid-state spins assisted by low-Q optical microcavities. https://doi.org/10.1103/physreva.94.062310

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