Instructions to Authors

General COMMUNICATIONS IN THEORETICAL PHYSICS is published monthly by the Chinese Physical Society through the Institute of Theoretical Physics, the Chinese Academy of Sciences. Articles in this journal are abstracted/indexed in Science Citation Index （SCI）, Science Citation Index Expanded （also known as SciSearch）, ISI Alerting Services, and Current Contents/Physical, Chemical and Earth Sciences;     

JOURNAL OF COMPUTATIONAL MATHEMATICS

The Journal of Computational Mathematics is an international journal on numerical methods, analysis and applications. It publishs original research papers in English, French or German, but preferably in English. Prom 1998, it has appeared bimonthly（instead of quarterly）.     

Multiparty Quantum Secret Sharing of Key Using Practical Faint Laser Pulses

Based on a bidirectional quantum key distribution protocol [Phys. Rev. A 70 (2004)012311], we propose a (m-1, m-1)-threshold scheme of m (m≥3)-party quantum secret sharing of key by using practical faint laser pulses. In our scheme, if all the m-1 sharers collaborate, they can obtain the joint secret key from the message sender. Our scheme is more feasible according to the present-day technology.     

基于CAPPFramework的CAPP系统的开发与应用

在国家863CIMS目标产品CAPPFramework系统的基础上，研究了面向对象的信息建模技术、信息模型驱动的所见即所得工艺设计技术、工作流技术．并在此基础上进行集成化、智能化计算机辅助工艺设计(CAPP)的应用与开发，实现了工艺设计的自动化，基本达到了在信息集成基础上的工艺设计与工艺信息管理一体化的目的，对企业的CAPP实施具有一定的参考价值．     

A New High Efficiency Multiwave Cerenkov Generator Operating at Low Magnetic Field

With a resonant cavity inserted between the second slow-wave-structure section and the tapered wavegulde, a new structure of the multlwave Cerenkov generator (MWCG) operating at low guiding magnetic field is proposed to produce high efficiency and high power microwave. Some features and potential advantages of the proposed device are analysed. The 2.5-dimensional partlcle-in-cell simulation is employed to verify the initial expectation.The results show that, with the use of an electron beam of 640keV and 8.4kA guided by the magnetic lield of 0.6 T, a stable and monochromatic X-band microwave output of 4 GW in peak power is achieved, and the average efficiency is over 30%.     

水下多路水声测量信号光纤传输系统

以一个水声被动测量系统的工程项目为平台，介绍与其配套的水下多路水声测量系统的构成、主要电路环节和工作原理。     

多维树枝状有机分子的双光子吸收特性

利用响应理论方法,研究了新近合成的以二-(苯乙烯基)苯为主干的多分枝有机物的双光子吸收特性.结果表明这些多维有机分子显示了较好的双光子吸收特性,其中A-π-A型的有机分子具有较大的双光子吸收截面,进一步说明了到底是对称型的还是不对称型的有机分子具有大的双光子吸收截面还与分子的π中心有关.     

多心理账户下机构投资者的风险优化研究

从决策有限理性角度，引入行为金融理论于机构投资风险优化系统，对多心理账户条件下机构投资的风险优化设计进行了研究。以Friedman和Savage之谜为释例，对机构投资风险优化中的诸多非标准金融异像进行了解释。以Shefrin和Statman行为证券组合理论为核心，建立了多心理账户条件下机构投资的风险优化模型，为机构投资的风险优化实践提供了一种量化分析工具。     

广义多目标minmax问题的最优性条件和极大熵方法

本文讨论了广义多目标minmax问题的最优性条件。利用极大熵逼近函数，研究了广义多目标minmax；问题的逼近问题，在较弱的条件下，证明了由极大熵逼近函数导出的多目标逼近问题的临界点的任一极限点均为原广义多目标minmax问题的临界点。     

重新初始化的LS方法跟踪二维可压缩多介质流界面运动

 用非耦合求解方法计算Level Set函数方程与流体力学方程组，应用重新初始化的Level Set函数确保距离函数性质，流体力学方程组采用二阶精度多介质流波传播差分格式计算，重新初始化方程采用五阶WENO格式计算。并给出了二维可压缩多介质流界面运动的计算结果。