Transfer behavior of quantum states between atoms in photonic crystal coupled cavities
文献类型：期刊论文
| 作者 | Zhang, K ; Li, ZY |
| 刊名 | PHYSICAL REVIEW A
 |
| 出版日期 | 2010 |
| 卷号 | 81期号:3 |
| ISSN号 | 1050-2947 |
| 关键词 | SPONTANEOUS EMISSION NANOCAVITY SYSTEM DOTS |
| 通讯作者 | Zhang, K (reprint author), Chinese Acad Sci, Inst Phys, Lab Opt Phys, POB 603, Beijing 100190, Peoples R China. |
| 中文摘要 | In this article, we discuss the one-excitation dynamics of a quantum system consisting of two two-level atoms each interacting with one of two coupled single-mode cavities via spontaneous emission. When the atoms and cavities are tuned into resonance, a wide variety of time-evolution behaviors can be realized by modulating the atom-cavity coupling strength g and the cavity-cavity hopping strength.. The dynamics is solved rigorously via the eigenproblem of an ordinary coupled linear system and simple analytical solutions are derived at several extreme situations of g and.. In the large hopping limit where g << lambda, the behavior of the system is the linear superposition of a fast and slow periodic oscillation. The quantum state transfers from one atom to the other atom accompanied with weak excitation of the cavity mode. In the large coupling limit where g >> lambda, the time-evolution behavior of the system is characterized by the usual slowly varying carrier envelope superimposed upon a fast and violent oscillation. At a certain instant, the energy is fully transferred from the one quantum subsystem to the other. When the two interaction strengths are comparable in magnitude, the dynamics acts as a continuous pulse having irregular frequency and line shape of peaks and valleys, and the complicated time-evolution behaviors are ascribed to the violent competition between all the one-excitation quantum states. The coupled quantum system of atoms and cavities makes a good model to study cavity quantum electrodynamics with great freedoms of many-body interaction. |
| 资助信息 | National Natural Science Foundation of China [10525419]; National Basic Research Foundation of China [2006CB921702, 2007CB613205]; China Scholarship Council (CSC) |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-23 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/46003]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Zhang, K,Li, ZY. Transfer behavior of quantum states between atoms in photonic crystal coupled cavities[J]. PHYSICAL REVIEW A,2010,81(3). |
| APA | Zhang, K,&Li, ZY.(2010).Transfer behavior of quantum states between atoms in photonic crystal coupled cavities.PHYSICAL REVIEW A,81(3). |
| MLA | Zhang, K,et al."Transfer behavior of quantum states between atoms in photonic crystal coupled cavities".PHYSICAL REVIEW A 81.3(2010). |
入库方式： OAI收割
来源：物理研究所
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