本文選題：量子存儲　切入點：Dicke模型　出處：《湖南師范大學(xué)》2014年碩士論文

【摘要】：熵不確定關(guān)系是目前量子光學(xué)與量子信息學(xué)研究的熱點問題。最近,國際上關(guān)于熵不確定關(guān)系及其應(yīng)用取得了重要進(jìn)展。其中最重要的進(jìn)展之一是Rense小組提出的量子存儲支撐下的熵不確定關(guān)系。揭示了量子存儲系統(tǒng)具有的量子信息能夠幫助人們減少或者消除被測量子系統(tǒng)的量子不確定性。本文運用量子存儲支撐下的熵不確定關(guān)系與開放量子系統(tǒng)理論,研究了馬爾科夫與非馬爾科夫環(huán)境下,量子存儲支撐的Dicke模型中原子的熵不確定度,得到了有創(chuàng)新意義的結(jié)果。主要內(nèi)容如下： 第一章首先介紹了熵的發(fā)展、經(jīng)典信息熵基本概念、量子熵基本概念；然后介紹海森堡測量不確定關(guān)系、熵不確定關(guān)系；最后介紹量子存儲支撐下的熵不確定關(guān)系以及意義。 第二章簡述了開放量子系統(tǒng)中的馬爾科夫近似和馬爾科夫主方程、非馬爾科夫效應(yīng)和主方程；介紹了Dicke模型,利用TCL方法求解了Dicke模型的精確解,并推廣到兩原子系統(tǒng)。 第三章討論了量子存儲支撐下,經(jīng)典驅(qū)動場下的Dicke模型中原子的熵不確定度特性�？疾炝朔邱R爾科夫效應(yīng)、經(jīng)典驅(qū)動場和體系失諧量對原子熵不確定度的影響。運用非馬爾科夫環(huán)境的記憶效應(yīng),解釋了原子熵不確定度的動力學(xué)行為。研究表明：非馬爾科夫環(huán)境效應(yīng)、經(jīng)典驅(qū)動場和體系失諧量三者共同作用,可以極大減小系統(tǒng)中原子的熵不確定度。 第四章簡要回顧并總結(jié)展望；
[Abstract]:Entropy uncertainty is a hot issue in quantum optics and quantum informatics. Important progress has been made on entropy uncertainty relation and its application in the world. One of the most important advances is the entropy uncertainty relationship supported by quantum storage proposed by Rense team. The quantum information of quantum storage system is revealed. Information can help people reduce or eliminate the quantum uncertainty of the measured subsystem. In this paper, the entropy uncertainty relationship supported by quantum storage and the open quantum system theory are used. In this paper, the entropy uncertainty of atoms in the Dicke model supported by quantum storage in Markov and non-Markov environments is studied, and innovative results are obtained. The main contents are as follows:. The first chapter introduces the development of entropy, the basic concept of classical information entropy, the basic concept of quantum entropy, and then introduces the measurement uncertainty relation and entropy uncertainty relation of Heisenberg. Finally, the entropy uncertainty relationship supported by quantum storage and its significance are introduced. In chapter 2, the Markov approximation and Markov master equation, non-Markov effect and main equation in open quantum system are briefly introduced, the Dicke model is introduced, and the exact solution of Dicke model is solved by TCL method, which is extended to two atomic systems. In chapter 3, the entropy uncertainty of atoms in the Dicke model supported by quantum storage is discussed, and the non-Markov effect is investigated. The effects of classical driving field and system detuning on the uncertainty of atomic entropy are studied. The dynamic behavior of the uncertainty of atomic entropy is explained by the memory effect of non-Markov environment. The entropy uncertainty of atoms in the system can be greatly reduced by the interaction of the classical driving field and the detuning of the system. Chapter four briefly reviews and summarizes the prospects;
【學(xué)位授予單位】：湖南師范大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：O413;TP333

【參考文獻(xiàn)】

相關(guān)期刊論文 前1條

1 方卯發(fā),陳菊梅;熵測不準(zhǔn)關(guān)系與光場的熵壓縮[J];光學(xué)學(xué)報;2001年01期

，

本文編號：1687680