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Teleportation of Two-Particle Entangled State via Cluster State

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Communications in Theoretical Physics 2007年第3期47卷 464-466页

作者： li da-chuang CAO Zhuo-liang Key Laboratory of Opto-Electronic Information Acquisition and Manipulation Ministry of Education and School of Physics and Material Science Anhui University Hefei 230039 China

In this paper, two schemes for teleporting an unknown two-particle entangled state from the sender （Alice） to the receiver （Bob） via a four-particle entangled cluster state are proposed. In these two schemes, the unknown twoparticle entangled state can be teleported perfectly. The successful probabilities and fidelities of the schemes can reach unity.

关键词： quantum teleportation Bell state measurement (BSM) quantum controlled phase gate

Thermal Entanglement in the Spin-S Heisenberg XYZ Model

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Chinese Physics Letters 2014年第4期31卷 5-8页

作者： li Hu li da-chuang WANG Xian-Ping YANG Ming CAO Zhuo-liang School of Physics Material Science Anhui University Hefei 230039 School of Electronic and Information Engineering Hefei Normal University Hefei 230601 Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics University of Science and Technology of China Hefei 230026 Department of Physics Fuyang Teachers College Fuyang 236041

The thermal entanglement in the spin-S Heisenberg XYZ model is studied in detail by using the entanglement measure of negativity. The effects of spin on the thermal entanglement, the threshold temperature, the critical uniform external magnetic field, the nonuniform external magnetic field and the＇, entanglement extremum are discussed, respectively. It is shown that with increasing spin, the entanglement will increase, and then decrease slowly. In addition, we find that entanglement will approach a constant Nc with the increase of DM interaction, the constant increases with the increase of spin, and both the threshold temperature Tc and critical uniform external magnetic field Bc will increase with the increasing spin. Thus high-spin system can inhibit the influence of the external environment better.

关键词： Model Thermal spin-S

Teleportation for an Unknown Entangled State Without Any Joint Measurement via Josephson Charge Qubits

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Communications in Theoretical Physics 2008年第5期49卷 1195-1198页

作者： li da-chuang ZHENG Xiao-Hu DONG Ping CAO Zhuo-liang Key Laboratory of Opto-electronic Information Acquisition and Manipulation Ministry of Education School of Physics＆ Material Science Anhui University Hefei 230039 China

An experimentally feasible scheme for teleportation of an arbitrary unknown entangled state is proposed. Our scheme is based on Josephson charge qubits, where we do not need any joint measurement. Moreover the successful probability and fidelity of the teleportation can both reach 1.0. The current scheme can be realized within the current experimental technology.

关键词： quantum teleportation Bell-state measurement Josephson charge qubits

Realization of Optimal Universal and Phase-Covariant Quantum Machines via Input-Output Cavities

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Chinese Physics Letters 2013年第3期30卷 9-13页

作者： WANG Cong-Rong li da-chuang ZHANG Feng-Yuan XU Rui-Min School of Electronics and Information Engineering Hefei Normal UniversityHefei 230601 Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics University of Science and Technology of ChinaHefei 230026

We present a scheme to realize a special quantum cloning machine via input-output *** cloning machine can copy information from one atom to another distant *** different parameters,the method can perform optimal symmetric(asymmetric)universal quantum cloning and optimal symmetric(asymmetric)phase-covariant *** to previous schemes,our scheme is more insensitive to actual environmental noise and can get higher fidelity in a current cavity quantum electrodynamics system with an entangled state acting as a quantum channel than a single-photon pulse.

关键词： quantum scheme asymmetric

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基于花朵授粉算法的产品拆卸序列规划

计算机集成制造系统 2016年第12期22卷 2791-2799页

作者：焦庆龙徐达李闯装甲兵工程学院兵器工程系北京100072

针对产品拆卸序列规划问题,提出一种基于花朵授粉算法的求解拆卸序列规划问题的方法。结合智能优化算法求解拆卸序列规划问题的特点,采用遗传算法的优先关系保留交叉操作方式,对花朵授粉算法的授粉方式进行了离散化处理。在建立离散花... 详细信息

针对产品拆卸序列规划问题,提出一种基于花朵授粉算法的求解拆卸序列规划问题的方法。结合智能优化算法求解拆卸序列规划问题的特点,采用遗传算法的优先关系保留交叉操作方式,对花朵授粉算法的授粉方式进行了离散化处理。在建立离散花朵授粉算法的基础上,构建了评价拆卸序列质量的适应度函数模型。通过实例对离散花朵授粉算法在不同初始条件设置的情况下进行了实验分析,并与遗传算法进行了比较,证明了所提算法的可行性与优越性。

关键词：拆卸序列规划花朵授粉算法拆卸优先关系拆卸作业位置

基于PLS的水体重金属liBS特征变量筛选方法研究

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光谱学与光谱分析 2017年第8期37卷 2585-2589页

作者：胡丽赵南京李大创唐磊方丽合肥师范学院电子信息工程学院安徽合肥230061 中国科学院安徽光学精密机械研究所安徽合肥230031

在水体重金属激光诱导等离子体光谱定量分析中,一般提取光谱的多个特征变量进行浓度反演,但变量之间所包含的光谱信息可能存在重叠,回归模型的复杂程度也随之增大。为提取有效特征变量,研究了基于偏最小二乘法(PLS)的变量筛选方法。该... 详细信息

在水体重金属激光诱导等离子体光谱定量分析中,一般提取光谱的多个特征变量进行浓度反演,但变量之间所包含的光谱信息可能存在重叠,回归模型的复杂程度也随之增大。为提取有效特征变量,研究了基于偏最小二乘法(PLS)的变量筛选方法。该方法以待测元素浓度为因变量,多个与待测元素浓度相关的liBS光谱特征值为自变量,进行PLS建模;依据各原始变量的投影重要性指标值进行变量筛选,提取最优变量子集。结果表明湖库水体中Pb元素的最优变量子集为PbⅠ405.78nm峰值及峰值前相邻点光谱值、内标校正值和信背比值,训练集的复相关系数R2m=0.912。以优化变量组合进行PLS回归分析,测试集预测结果的RSD和RE分别为10.2%和7.9%,显著优于内标法的预测结果。结果还表明,变量筛选结果对于不同元素和不同水样具有一定适用性。研究结果为水体重金属liBS定量分析提供了优质特征数据,研究方法为其他涉及变量筛选的定量分析提供了参考。

关键词：光谱学激光诱导击穿光谱变量筛选 PLS方法

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量子力学中求解有效哈密顿量的两种方法

合肥师范学院学报 2010年第3期28卷 30-31页

作者：李大创合肥师范学院物理与电子工程系安徽合肥230601

在原子与光场相互作用的量子系统中,原子的跃迁频率通常与光场的频率失谐,针对这类失谐量子系统,本文在旋波近似下介绍了两种求解其有效哈密顿量的方法,并给出了一个例子。

关键词：失谐有效哈密顿量旋波近似

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多发性硬化疾病50例MRI诊断分析

临床和实验医学杂志 2008年第6期7卷 132-133页

作者：李大创南宁市303医院放射科广西南宁530021

目的探讨多发性硬化(MS)疾病的临床及核磁共振(MRI)信号特点。方法对50例MS患者的部位、范围、病变处形态、MRI信号及强化程度进行回顾性分析。结果MS的特征性表现为同时累及多个不同的部位的斑片状T1WI低或等信号,T2WI高信号影,增强扫... 详细信息

目的探讨多发性硬化(MS)疾病的临床及核磁共振(MRI)信号特点。方法对50例MS患者的部位、范围、病变处形态、MRI信号及强化程度进行回顾性分析。结果MS的特征性表现为同时累及多个不同的部位的斑片状T1WI低或等信号,T2WI高信号影,增强扫描后活动期病变明显强化,静止期病变无强化或强化减弱。结论MRI定位准确,不仅有助于MS的诊断及鉴别诊断,而且是目前MS最敏感的影像学检查手段。它为临床诊断及治疗、疗效评价提供了重要信息。

关键词：多发性硬化磁共振成像诊断

Micro-strain regulation strategy to stabilize perovskite lattice based on the categories and impact of strain on perovskite solar cells

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Journal of Energy Chemistry 2025年第1期100卷 578-604页

作者： Caixia li Wenwu liu Shiji da lingbin Kong Fen Ran State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals Lanzhou University of Technology School of Materials Science and Engineering Lanzhou University of Technology

Photovoltaic metal halide perovskite solar cells(PSCs) convert light to electricity more efficiently than crystalline silicon cells, and the cost of materials used to make them is lower than that of silicon *** efficiency is not a core issue affecting the application of perovskite solar cells in special *** present, stability is the major technical encounters that hinders its further commercial development. Microstrain in PSCs is currently a significant factor responsible for the device's instability. Strain-induced ion migration is widely believed to accelerate perovskite degradation even when external stimuli are ***, it is imperative to study strain to enhance the stability of PSCs. This paper reviews recent developments to understand strain's origin and effect mechanisms on performance of PSCs, including ion migration,failure behavior, defect formation, and its effect on photoelectric properties, stability, and ***, several well-known strain management strategies are systematically introduced based on the strain effect mechanism and strain engineering on the film, providing more clues for further preparation with increased stability. The manipulation of external physical strain applied from films to entire devices has been extensively studied. Furthermore, recommendations for future research directions and chemical approaches have been provided. It is emphasized that strain engineering plays a crucial role in improving the efficiency and longevity of PSCs. Tensile strain causes rapid degradation, while moderate compressive strain and external strain control could improve properties and stability. Efforts should focus on controlling compressive strain to mitigate residual tensile strain and introducing it in a controlled manner. Future research endeavors may focus on exploring these pathways to improve the efficiency and lifespan of PSCs.

关键词： Halide perovskite solar cells Strain origins Strain effects Strain management