Measure-Resend Semi-Quantum Private Comparison Scheme Using GHZ Class States

Quantum private comparison is an important topic in quantum cryptography.Recently,the idea of semi-quantumness has been often used in designing private comparison protocol,which allows some of the participants to remain classical.In this paper,we propose a semi quantum private comparison scheme based on Greenberge-Horne-Zeilinger(GHZ)class states,which allows two classical participants to compare the equality of their private secret with the help of a quantum third party(server).In the proposed protocol,server is semi-honest who will follow the protocol honestly,but he may try to learn additional information from the protocol execution.The classical participants’activities are restricted to either measuring a quantum state or reflecting it in the classical basis{0,1}.In addition,security and efficiency of the proposed schemes have been discussed.

Scheme for implementing perfect remote state preparation with W-class state in cavity QED

In this paper we present a remote state preparation scheme with a three-qubit W-class state in cavity QED. It has been shown that a special single-qubit state and a special two-qubit entangled state can be remotely prepared perfectly. Furthermore, the classical information cost in this scheme is less than that in the corresponding teleportation scheme and only a single-qubit projective measurement is made by the sender. We also generalize this idea to the multiqubit W-class state.

Probabilistic teleportation of an arbitrary GHZ-class state with a pure entangled two-particle quantum channel and its application in quantum state sharing

This paper presents a scheme for probabilistic teleportation of an arbitrary GHZ-class state with a pure entangled two-particle quantum channel. The sender Alice first teleports the coefficients of the unknown state to the receiver Bob, and then Bob reconstructs the state with an auxiliary particle and some unitary operations if the teleportation succeeds. This scheme has the advantage of transmitting much less particles for teleporting an arbitrary GHZ-class state than others. Moreover, it discusses the application of this scheme in quantum state sharing.

Scheme for implementing quantum dense coding with W-class state in cavity QED

An experimentally feasible protocol for realizing dense coding by using a class of W-state in cavity quantum electrodynamics （QED） is proposed in this paper. The prominent advantage of our scheme is that the successful probability of the dense coding with a W-class state can reach 1. In addition, the scheme can be implemented by the present cavity QED techniques.

Quantum correlation of a three-particle-class state under quantum decoherence

We investigate the quantum characteristics of a three-particle W-class state and reveal the relationship between quan- tum discord and quantum entanglement under decoherence. We can also identify the state for which discord takes a maximal value for a given decoherence factor, and present a strong bound on quantum entanglement-quantum discord. In contrast, a striking result will be obtained that the quantum discord is not always stronger than the entanglement of formation in the case of decoherence. Furthermore, we also theoretically study the variation trend of the monogamy of quantum correlations for the three-particle W-class state under the phase flip channel, and find that the three-particle W-class state could transform from polygamous into monogamous, owing to the decoherence.

Deterministic quantum teleportation and information splitting via a peculiar W-class state

In the paper （Phys. Rev. 2006 A 4 062320） Agrawal et al. have introduced a kind of W-class state which can be used for the quantum teleportation of single-particle state via a three-particle von Neumann measurement, and they thought that the state could not be used to teleport an unknown state by making two-particle and one-particle measurements. Here we reconsider the features of the W-class state and the quantum teleportation process via the W-class state. We show that, by introducing a unitary operation, the quantum teleportation can be achieved deterministically by making two-particle and one-particle measurements. In addition, our protocol is extended to the process of teleporting two-particle state and splitting information.

Scheme for Entanglement Concentration of Unknown Multiparticle Greenberger-Horne-Zeilinger or W Class States

We present,two schemes for concentrating unknown nonmaximally entangled Greenberger Horme-Zeilinger(GHZ) or W class states.The first scheme for concentrating the nonmaximally entangled GHZ state is based on linearoptical devices.The second scheme for concentrating the W class states can be applied to a wide variety of atomic state.Both of our schemes are not postselection ones and are within the current technologies.

Teleportation of Unknown Atomic Entangled States Using GHZ Class States

We propose two physical schemes, which can teleport unknown atomic entangled states from user A （Alice） to user B （Bob） via GHZ class states as quantum channel The two schemes are both based on cavity QED techniques. In the two schemes, teleportation and distillation procedures can be realized simultaneously. The second teleportation scheme is more advantageous than the first one.

基于W和W-class态信道的概率性受控隐形传态

提出利用三粒子W和W-class态传送一个未知单粒子态从而实现受控量子隐形传态的方案。发送者Alice通过这种信道在Bob的控制下传送一个未知单粒子态给接受者Charlie。详细讨论了该方案,并给出了成功概率。

Feasible Scheme for Teleportation of an Arbitrary N-Atom State with Thermal Cavity

We present a scheme for teleportation of an arbitrary cavity QED, and show the feasibility in experiment. thermal field, and the fidelity of teleportation is only the success probability reaches 1.0. N-atom state without Bell state measurement in thermal Our scheme is also insensitive to both cavity decay and slightly affected by the experimental errors. In addition,

An approach to formalizing specification-based class testing

This paper presents a framework that can be used to formalize the specification-based single-class test generation process. Object-Z is used to describe both software requirements and the proposed framework. Using this framework, test engineers can automatically get the testing process model during the test generation process. With this model, properties of test cases （ such as relationship between test cases and methods can easily be captured. Furthermore, with the framework, the test process model can be updated automatically with the test generation process. The properties of test cases can then be updated correspondingly. It will greatly facilitate the regression testing. The main contribution of this paper is that it provides an approach to formalizing testing process by extending existing framework to class testing, and a way to represent test cases as multi-part, multi-step, multi-level artifacts.

A Specification-Based Case Study from Test Class Framework

Testing is a standard method for verification of software performance. Producing efficient and appropriate test case is an important aspect in testing. Specification based testing presents a method to derive test data from software specification. Because of the precision and concision of specification, the test data derived from specification can test the software efficiently and entirely. This paper demonstrates a test class framework(TCF) on a file reading case study, specified using Z notation. This test class framework defines test case sets, providing structure to the testing process. Flexibility is preserved so that many testing strategies can be used.

谁在当中美一流大学校长?——基于统计分析的画像与启示

大学校长担负着领导大学发展的责任。经过对中美两国一流大学校长比较分析发现,两国校长均以男性为主,普遍拥有博士学位和高校工作经历;美国一流大学校长偏向“长者化”,任职年龄、任职年限和退任年龄均明显高于我国;我国一流大学校长尤其是中管高校校长获得最高学位的学科背景主要集中于理工科,而美国一流大学校长尤其是私立大学校长的学历背景则表现为理工科与人文社科各占一半;我国一流大学校长尤其是中管高校校长学缘关系十分明显,晋升方式以内部升职为主,美国一流大学校长则以校外聘任为主;我国一流大学校长尤其是中管高校校长的职业晋升阶梯一般表现为“系主任—院长—副校长—校长”,而美国一流大学校长尤其是公立大学校长的职业晋升阶梯则通常表现为“系主任—院长—教务长或副校长—校长”。对此,我国大学校长选任应反思传统遴选所带来的问题,提高群体结构合理性;完善选任要求,重视多岗位锻炼和跨院校工作经历;打造“选养”并举的选任制度,适度放宽年龄及任期限制。

从“社会”语义变迁看马克思“国家社会”理论的范式革命

深刻把握国家与社会之间关系离不开对“社会”语义的历史考察,事实上,独立完整的“社会”概念的生成经历了一个漫长的过程。古典共同体是“社会”与“国家”的共同源头,工商业活动的扩展造成古典共同体的分殊化,导致了“社会”与“国家”之分。黑格尔从苏格兰常识学派那里转译的市民社会概念抽空人类秩序的应然性规范,突出群体生存生活的实然性纽带。马克思继承黑格尔市民社会概念满足人类需要的设定,悬置“社会”的商业交换特征,把“社会”概念的内核转向生产,以生产力发展水平为尺度展现出“社会”的历史面相。一方面,社会形态反映生产资料所有制形式;另一方面,国家需要维护特定社会形态相连的所有制形式。因此,社会形态和国家性质都具有历史维度,国家与社会之间不是孰强孰弱的静态格局,而是以所有制形式为中轴的“经济基础”与“上层建筑”交互作用的动态进程。“社会”语义的分析表明,马克思真正实现了“国家-社会”理论的范式革命。

美国密歇根大学经费运行模式研究

美国密歇根大学作为公立常春藤高校,在经费执行、筹措、配置方面形成了成熟的机制,有力支撑了密歇根大学保持世界一流水平。文章通过分析密歇根大学的经费运行理念,经费执行流程,经费筹措主要来源、金额与结构,配置主要去向、金额与结构,以及应对拨款削减挑战的经费策略,得出建立权责分工明确的经费运行机制,尝试更加灵活大胆的筹资方法,重视对教师与学生的经费支持,因时制宜调整经费策略,推进高校经费管理数字化建设,建立向师生、政府、社会负责的经费绩效评价体系等启示。

中国基层社会治理中的士绅传统——基于“国家-社会”互构的视角

“士绅传统”在中国国家治理体系中由来已久,士绅群体一直被认为是传统社会颇具活动能量的特殊阶层,是名副其实的地方权威,是社会的“中间阶层”,构成中国国家治理中的重要一维。纵观士绅的形成和发展,特定时期的确存在“土豪劣绅”现象,但总体而言,士绅充当着沟通国家政权与基层民众的“桥梁”,有效回避或缓冲了因国家与社会相分离而产生的冲突,维系着传统社会基本面的平稳。时至今日,在致力于推进国家治理体系和治理能力现代化的时代语境中,深入发掘士绅传统中的优良因子,一方面可为“中国之治”的纵深推进提供本土化治理经验;另一方面,希冀更好发挥以史鉴今、资政育人作用。

学生助学金申报管理系统的设计与实现

助学金申报工作是学生资助工作中的重要环节,传统的助学金申报管理工作存在着工作效率低、易出错等问题。文章针对这些问题,设计与实现了学生助学金申报管理系统。在系统的需求分析与设计阶段,使用UML图形构建了系统的主要模型;在系统的实现阶段,使用ASP.NET(C#)完成了学生助学金申报模块和助学金申报审核模块的代码编写。助学金申报管理系统让申报过程实现无纸化,避免了家庭经济困难学生在传统助学金申报中面临的尴尬,有效地提高了工作效率,降低了易错率。

反舰导弹突防水面舰艇多层防空体系效能评估

针对使用反舰导弹打击水面舰艇时存在的使用数量难以确定、打击效果难以预先评估的问题,利用马尔可夫链理论和状态转移方程,建立反舰导弹突破多层防空体系模型,动态评估x枚反舰导弹突破敌水面舰艇所有防空体系后的“状态”,预测打击效果,确定要实现作战目标所需反舰导弹的最佳数量,为复杂情况下反舰导弹突防制定合理的火力计划。

一种扩展了价格信息的时间Petri网

性能和成本分析是业务流程建模的主要目的,扩展了时间信息的Petri网能够有效地进行性能分析,但是对成本分析却无能为力.提出一种扩展了价格信息的时间Petri网——价格时间Petri网.首先为时间变迁扩展价格参数,并使用价格时间变迁系统给出价格时间Petri网的语义;然后提出计价状态类的概念,并证明为状态类扩展累积成本的合理性和完备性;进而给出一种算法来证明有界价格时间Petri网的最小成本可达问题是可判定的;最后给出一个应用例子并得出结论:为时间Petri网扩展价格信息并将其应用于业务流程管理领域是可行的.

基于时间Petri网的供应链管理建模与分析

讨论了基于时间Petri网的供应链、企业之间工作流的运作效率问题，主要研究了供应链的时间Petri网建模及分析方法，提出了原有时间Petri网可达树算法应用于资源调度问题中的不足之处，并改进了原有算法。通过对供应链上资源的优化利用，可以实现对电子商务、协作商务及虚拟企业的有效管理。