کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8201384 | 1529820 | 2018 | 24 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
High-fidelity quantum gates on quantum-dot-confined electron spins in low-Q optical microcavities
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک و نجوم (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: High-fidelity quantum gates on quantum-dot-confined electron spins in low-Q optical microcavities High-fidelity quantum gates on quantum-dot-confined electron spins in low-Q optical microcavities](/preview/png/8201384.png)
چکیده انگلیسی
We propose some high-fidelity quantum circuits for quantum computing on electron spins of quantum dots (QD) embedded in low-Q optical microcavities, including the two-qubit controlled-NOT gate and the multiple-target-qubit controlled-NOT gate. The fidelities of both quantum gates can, in principle, be robust to imperfections involved in a practical input-output process of a single photon by converting the infidelity into a heralded error. Furthermore, the influence of two different decay channels is detailed. By decreasing the quality factor of the present microcavity, we can largely increase the efficiencies of these quantum gates while their high fidelities remain unaffected. This proposal also has another advantage regarding its experimental feasibility, in that both quantum gates can work faithfully even when the QD-cavity systems are non-identical, which is of particular importance in current semiconductor QD technology.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Annals of Physics - Volume 391, April 2018, Pages 150-160
Journal: Annals of Physics - Volume 391, April 2018, Pages 150-160
نویسندگان
Tao Li, Jian-Cun Gao, Fu-Guo Deng, Gui-Lu Long,