本文選題：量子計算 + 離子阱　； 參考：《中國科學(xué)院大學(xué)(中國科學(xué)院武漢物理與數(shù)學(xué)研究所)》2017年碩士論文

【摘要】：根據(jù)熱力學(xué)定律,經(jīng)典計算機的計算過程是不可逆的,其能耗問題很難得到進一步的解決。經(jīng)典計算機經(jīng)過五代的發(fā)展,要想進一步升級已經(jīng)是極其困難。而量子計算的過程是可逆的,它在解決某些特別的問題上體現(xiàn)出了經(jīng)典計算機難以比擬的優(yōu)勢,也給計算機的發(fā)展帶來了新的希望,因此被眾多物理學(xué)家所關(guān)注。在當前發(fā)展比較好的量子計算機物理體系中,可擴展的微型表面電極離子阱由于克服了線形離子阱體系中量子比特擴展性差的缺點而被眾多實驗物理學(xué)家所關(guān)注。這種結(jié)構(gòu)的離子阱通過現(xiàn)在精密的加工工藝,將各個微小的電極鑲嵌到一個絕緣材料表面上,可以實現(xiàn)離子阱系統(tǒng)的各種功能。本文主要概括了基于微型表面電極離子阱的一些實驗成果,包括離子阱系統(tǒng)的搭建,離子的囚禁和冷卻,離子微運動補償和加熱率的測量。具體工作如下;1.完成離子阱系統(tǒng)的搭建,并找到囚禁離子熒光信號。2.將離子幾乎冷卻到Doppler冷卻溫度的極限,通過LabVIEW程序精確控制囚禁場和激光頻率。完成離子加熱率的測量,并且分析了離子數(shù)、射頻功率和離子的囚禁位置對加熱率的影響。3.建立了基于贗勢的離子熱傳導(dǎo)模型,對離子熱傳導(dǎo)過程中離子動能的周期和頻譜進行了分析。
[Abstract]:According to the law of thermodynamics, the calculation process of classical computer is irreversible, and the problem of energy consumption is difficult to be solved further. After the development of five generations, it is very difficult to upgrade the classical computer. The process of quantum computing is reversible. It shows the incomparable advantages of classical computer in solving some special problems, and also brings new hope to the development of computer, so it has been paid attention to by many physicists. In the recently developed quantum computer physics system, the extensible micro-surface electrode ion trap has been paid much attention by many experimental physicists for overcoming the shortcoming of poor quantum bit expansibility in the linear ion trap system. This kind of ion trap can realize all kinds of functions of ion trap system by inserting each tiny electrode onto an insulating material surface through the present precise processing technology. In this paper, some experimental results based on micro-surface electrode ion trap are summarized, including the construction of ion trap system, ion trapping and cooling, ion micro-motion compensation and measurement of heating rate. The specific work is as follows. The ion trap system was constructed and the trapped ion fluorescence signal. 2. 2 was found. The ion is almost cooled to the limit of Doppler cooling temperature, and the trapping field and laser frequency are accurately controlled by LabVIEW program. The effect of ion number, RF power and ion trapping position on the heating rate was analyzed. The ionic heat conduction model based on pseudopotential is established, and the period and spectrum of ionic kinetic energy in the process of ionic heat conduction are analyzed.
【學(xué)位授予單位】：中國科學(xué)院大學(xué)(中國科學(xué)院武漢物理與數(shù)學(xué)研究所)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TP38

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本文編號：1867656