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| 2个原子与2个耗散腔场量子体系中的量子退相干 | |
| 引用本文： | 张玥,王磊,姜文英,郑丽,潘淑梅,郑泰玉.2个原子与2个耗散腔场量子体系中的量子退相干[J].东北师大学报(自然科学版),2012,44(3):65-68. |
| 作者姓名： | 张玥 王磊 姜文英 郑丽 潘淑梅 郑泰玉 |
| 作者单位： | 1. 东北师范大学物理学院,吉林长春,130024 2. 桂林电子科技大学电子工程与自动化学院,广西桂林,541004 3. 大连工业大学信息科学与工程学院,辽宁大连,116034 |
| 基金项目： | 国家自然科学基金资助项目(11175044,11105021);吉林省自然科学基金资助项目(201115007) |
| 摘 要： | 应用J-C模型与相互作绘景中的密度算符理论,研究了2个相互纠缠的理想腔体中2个二能级Rydberg原子与2个纠缠耗散腔场单光子共振相互作用过程中的量子退相干,得到了2个二能级原子的退相干因子.通过对数值计算,讨论了耗散系数和原子-光场相互作用耦合系数对原子态的量子相干性的演化特性的影响.结果表明,耗散系数和原子-光场相互作用强度不仅影响原子态的量子相干性的演化的振荡性,而且影响其演化的周期性. |
| 关 键 词： | 量子退相干 耗散腔场 密度算符 J-C模型 |
Quantum decoherence in system of two atom-two dissipative cavity |
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| ZHANG Yue , WANG Lei , JIANG Wen-ying , ZHENG Li , PAN Shu-mei , ZHENG Tai-yu.Quantum decoherence in system of two atom-two dissipative cavity[J].Journal of Northeast Normal University (Natural Science Edition),2012,44(3):65-68. | |
| Authors: | ZHANG Yue WANG Lei JIANG Wen-ying ZHENG Li PAN Shu-mei ZHENG Tai-yu |
| Institution: | 1(1.School of Physics,Northeast Normal University,Changchun 130024,China;2.School of Electronic Engineering and Automation,Guilin University of Electronic Technology,Guilin 541004,China;3.Information Science and Engineering College,Dalian Polytechnic University,Dalian 116034,China) |
| Abstract: | In this paper,by using J-C model and the density operator theory in interaction picture,Studied the quantum decoherence in the system of two two-level Rydberg atom and two entangled dissipative cavities with single-photon resonant interaction.The decoherence factor of the atoms was gotten and analyzed how the cavity dissipation coefficients and the atom-cavity interaction coupling coefficient influenced the oscillation model and the evolution period of the coherence of quantum state of the atoms. |
| Keywords: | quantum decoherence dissipative cavity density operator J-C model |
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