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.
@article{arxiv.1511.00087,
title = {Error-rejecting quantum computing with solid-state spins assisted by low-Q optical microcavities},
author = {Tao Li and Fu-Guo Deng},
journal= {arXiv preprint arXiv:1511.00087},
year = {2017}
}