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

Tao Li (李涛) and Fu-Guo Deng (邓富国)
Phys. Rev. A 94, 062310 – Published 8 December 2016

Abstract

We present an efficient proposal for error-rejecting quantum computing with quantum dots (QDs) 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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  • Received 31 August 2016

DOI:https://doi.org/10.1103/PhysRevA.94.062310

©2016 American Physical Society

Physics Subject Headings (PhySH)

Quantum Information, Science & Technology

Authors & Affiliations

Tao Li (李涛) and Fu-Guo Deng (邓富国)*

  • Department of Physics, Applied Optics Beijing Area Major Laboratory, Beijing Normal University, Beijing 100875, China

  • *Corresponding author: fgdeng@bnu.edu.cn

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Issue

Vol. 94, Iss. 6 — December 2016

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