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研究生: 余啟成
Yu, Chi-Cheng
論文名稱: 高尺度量子邏輯閘之模擬與設計
Scheme for Simulation and Designing of Large-Scale Quantum Logic Gate
指導教授: 黃吉川
Hwang, Chi-Chuan
學位類別: 碩士
Master
系所名稱: 工學院 - 工程科學系
Department of Engineering Science
論文出版年: 2016
畢業學年度: 104
語文別: 中文
論文頁數: 113
中文關鍵詞: 量子資訊量子控制量子演算法量子電腦
外文關鍵詞: quantum information, quantum computer, quantum algorithm
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  • 本論文的研究為三氯甲烷分子在核磁共振(NMR)系統,透過脈衝雷射整形的模擬實驗,將最佳化控制場,選取重要頻率位置將其保留,以飛秒脈衝雷射的波形結合特定染色體參數型式,透過基因演算法步驟求解得到最佳化可行性雷射場達成量子邏輯閘演化操作。另外,本論文亦使用IBM公開的量子電腦平台進行模擬與實驗,也就是說,我們可透過此平台直接使用量子電腦進行模擬與實驗設計出我們想要的量子電路,本部分主要以五個量子位元的貝爾不等式量測電路、五個量子位元的量子穩定碼邏輯閘電路以及四個量子位元的搜尋演算法邏輯電路來做討論。由於該平台能夠進行模擬與實驗,因此可藉由這兩者與理想的結果進行比較,評估所模擬與實驗對象的可行性。最後本論文成功以最佳化控制整合基因演算法模擬二個量子位元之糾纏邏輯閘,以及使用IBM所公開的量子電腦平台實現了上述的三種邏輯閘電路,且對每一種電路串接的組合進行輸出態的分析,並將理想、模擬以及實驗的結果互相比較。

    In thesis, we tested three quantum algorithm of circuits on five qubit IBM quantum computer, that’s include five qubit Bell-Mermin inequality measurement circuit、five qubit of quantum stabilizer code and four qubit Grover search algorithm . For Bell Mermain inequality measurement ,we can calculate expected values and distinguish the result is principle of local realism( principle of locality) or quantum mechanical, quantum stabilizer code circuit can executed quantum error correction , Grover search algorithm can using the minimum number of times to find a specific state. We executed ten experiments and compare with result of ideal , then we calculate the mean fidelity and standard error.

    中文摘要 I Abstract II 誌謝 XI 目錄 XII 表目錄 XV 圖目錄 XVI 符號說明 XXI 第一章 緒論 1 1-1研究背景 1 1-2文獻回顧 3 1-3研究動機 6 1-4本文架構 7 第二章 量子資訊基礎理論 8 2-1 量子力學四大公設 8 2-2 量子位元與量子邏輯閘 11 2-3 希爾伯特空間與約化李維空間 15 2-4 密度算符與動態演化方程式 18 2-5量子過程掃描解析與保真度 20 第三章 量子演算法 23 3-1 貝爾定理與GHZ論述 23 3-2 量子穩定碼電路 27 3-2-1 量子穩定碼定義 28 3-2-2 糾錯性質 33 3-3 搜尋演算法 35 第四章 整合量子最佳化控制與基因演算法 38 4-1三氯甲烷分子系統 38 4-2糾纏回授疊代演算法 43 4-3求解最佳化可行性雷射場 48 第五章 模擬與實驗結果分析 55 5-1 糾纏邏輯閘之模擬結果 55 5-2 IBM量子電腦簡介 68 5-3量子邏輯閘設計概要 71 5-4量子電腦模擬與實驗 74 5-5 貝爾不等式量測電路之模擬與實驗 75 5-6 穩定碼電路邏輯閘之模擬與實驗 82 5-7 搜尋演算法邏輯閘之模擬與實驗 95 第六章 結論與未來展望 105 6-1 結論 105 6-2 未來展望 105 參考文獻 107

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