| Evolution properties of the field quantum entropy in the nonlinear Jaynes-Cummings model of a trapped ion | |
| Liu Wang-Yun; Bi Si-Wen; Dou Xi-Bo | |
| 2010-03-01 | |
| 发表期刊 | ACTA PHYSICA SINICA
 |
| 卷号 | 59期号:3页码:1780-1785 |
| 摘要 | The time evolution properties of the field quantum entropy in the system of a trapped ion interacting resonantly with a standing-wave laser field is studied by utilizing the Von Neumann reduced quantum entropy theory, and our attention focuses on the discussion of the influence of the Lamb-Dick parameter, the position of the ion in the standing-wave laser field and the initial state of the trapped ion on the evolution properties of the field quantum entropy. The results obtained from the numerical calculation indicate that: the value of the Lamb-Dick parameter effect the oscillation frequency and amplitude of the quantum entanglement between the trapped ion and the standing-wave laser field, the larger the Lamb-Dick parameter is, the weaker the average entanglement level between the ion and the field will be. When moving the tapped ion from the node of the standing-wave laser to the loop, the vibration frequency of the quantum entanglement between the field and the ion becomes slow gradually, and the entanglement degree gets weaker and weaker. With the decrease of the probability of the trapped ion being in the excited state, the quantum entanglement between the trapped ion and the stanging-wave laser field shows the tendency of increase first and then decrease. These properties have certain reference value for the preparation of entangled states and for the quantum communications with the thapped ion, and so on. |
| 文章类型 | Article |
| 关键词 | Quantum Information Science Trapped Ion Nonlinear Jaynes-cummings Model Field Quantum Entropy |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 收录类别 | SCI |
| 关键词[WOS] | COHERENT STATES ; COLD ION ; ATOM ; TELEPORTATION ; GENERATION ; RESONANCE ; PHASE |
| 语种 | 中文 |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Multidisciplinary |
| WOS记录号 | WOS:000276004500055 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.opt.ac.cn/handle/181661/25296 |
| 专题 | 瞬态光学研究室 |
| 作者单位 | Chinese Acad Sci, State Key Lab Transient Opt & Photon, Xian Inst Opt & Precis Mech, Xian 710119, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu Wang-Yun,Bi Si-Wen,Dou Xi-Bo. Evolution properties of the field quantum entropy in the nonlinear Jaynes-Cummings model of a trapped ion[J]. ACTA PHYSICA SINICA,2010,59(3):1780-1785. |
| APA | Liu Wang-Yun,Bi Si-Wen,&Dou Xi-Bo.(2010).Evolution properties of the field quantum entropy in the nonlinear Jaynes-Cummings model of a trapped ion.ACTA PHYSICA SINICA,59(3),1780-1785. |
| MLA | Liu Wang-Yun,et al."Evolution properties of the field quantum entropy in the nonlinear Jaynes-Cummings model of a trapped ion".ACTA PHYSICA SINICA 59.3(2010):1780-1785. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| 囚禁离子非线性Jaynes_Cummin（595KB） | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 请求全文 | |
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