【摘 要】
：
We investigate the preparation and the control of entangled states in a system with the two-mode coherent fields interacting with a moving two-level atom via th
【机 构】
：
Department of Physics, Hunan University of Science and Technology, Xiangtan 411201, China“,”Anhui In
论文部分内容阅读
We investigate the preparation and the control of entangled states in a system with the two-mode coherent fields interacting with a moving two-level atom via the two-photon transition. We discuss entanglement properties between the two-mode coherent fields and a moving two-level atom by using the quantum reduced entropy, and those between the two-mode coherent fields by using the quantum relative entropy. In addition, we examine the influences of the atomic motion and field-mode structure parameter p on the quantum entanglement of the system. Our results show that the period and the duration of the prepared maximal atom-field entangled states and the frequency of maximal two-mode field entangled states can be controlled, and that a sustained entangled state of the two-mode field, which is independent of atomic motion and the evolution time, can be obtained, by choosing appropriately the parameters of atomic motion, field-mode structure, initial state and interaction time of the system.
其他文献
In this paper conventional stochastic resonance (CSR) is realized by adding the noise intensity. This demonstrates that tuning the system parameters with fixed
The semiconductor CdSeS quantum dots (QDs) embedded in glass are analysed by means of absorption spectra,photoluminescence (PL) spectra and photoluminescence ex
To investigate the reliability of electrode materials for chalcogenide random access memory (C-RAM) applications, the geometry and time evolution of the worm-li
AIN/GaN superlattice buffer is inserted between GaN epitaxial layer and Si substrate before epitaxial growth of GaN layer. High-quality and crack-free GaN epita
在世界各国经济发展和社会进步的进程中,农业这个特殊产业部门的发展与进步起着举足轻重的作用.它作为孕育、滋养其他产业的母体产业,给人们提供了最基本的生活资料,为其他产
棉花是世界上重要的纤维作物,同时也是研究植物多倍化演化的模式材料。由于四倍体陆地棉染色体数目多(2n=52)且染色体长度较短,缺乏明显的表型区别,因此,难以开展染色体的识别与深入的核型分析。本研究通过筛选人工染色体BAC克隆,获得了一套位于异源四倍体陆地棉26条染色体不同臂的特异BAC。在此基础上,结合着丝粒特异的BAC 97G20和拟南芥端粒特异的序列标记,对陆地棉进行了染色体的精细识别。结果发
在我国,乙肝病毒慢性感染是引发肝细胞癌的主要原因。抗病毒措施是乙型肝炎治疗的关键,抗乙肝病毒治疗可以降低肝细胞肝癌的发生风险,但具体机制尚不清楚。在慢性炎症致癌的
本研究选用不同基因型的138个大豆品种（系）为试验材料，采用幼苗生长测定和电导率测定两种常用方法测定种子活力，采用分光光度法测定种子LOX活性，采用近红外法测定种子蛋白质和脂肪含量，结合种子的田间出苗率进行各指标间相关分析，采用欧式最长距离法按LOX活性进行聚类分析；采用加速老化试验法预测138份材料中的67个大豆品种（系）的耐藏性，并结合其他测定指标进行相关分析；测定了138份材料中的107个大
Through magnetization measurement with a SQUID magnetometer the heat treatment optimization of an inteational thermonuclear experimental reactor (ITER)-type int
The transmission probability of the two-mode mazer injected with V-type three-level atoms is studied, and the effects of the atomic coherence on it are examined