کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7931211 | 1512601 | 2014 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Generation and entanglement concentration for electron-spin entangled cluster states using charged quantum dots in optical microcavities
ترجمه فارسی عنوان
غلظت تولید و درهم آمیختگی برای حالت خوشه ای درهم آمیخته الکترون با استفاده از نقاط کوانتومی شارژ در میکروسکوپ نوری
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کلمات کلیدی
حالت خوشه، نقطه کوانتومی در داخل ریزه کاری ها، تمرکز غلظت،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
چکیده انگلیسی
We present schemes for deterministically generating multi-qubit electron-spin entangled cluster states by the giant circular birefringence, induced by the interface between the spin of a photon and the spin of an electron confined in a quantum dot embedded in a double-sided microcavity. Based on this interface, we construct the controlled phase flip (CPF) gate deterministically which is performed on electron-spin qubits and is the essential component of the cluster-state generation. As one of the universal gates, the CPF gate constructed can also be utilized in achieving scalable quantum computing. Besides, we propose the entanglement concentration protocol to reconstruct a partially entangled cluster state into a maximally entangled one, resorting to the projection measurement on an ancillary photon. By iterating the concentration scheme several times, the maximum success probability can be achieved. The fidelities and experimental feasibilities are analyzed with respect to currently available techniques, indicating that our schemes can work well in both the strong and weak (Purcell) coupling regimes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 322, 1 July 2014, Pages 32-39
Journal: Optics Communications - Volume 322, 1 July 2014, Pages 32-39
نویسندگان
Jie Zhao, Chun-Hong Zheng, Peng Shi, Chun-Nian Ren, Yong-Jian Gu,