U.S.-Japan Joint Seminar: Understanding and Conquering Long Time Scales in Computer Simulations

该奖项支持美国科学家参加将于1999年8月9日至12日在夏威夷举行的“理解和征服计算机模拟中的长时间尺度”美日研讨会。协办人是佐治亚大学的大卫·兰道教授和日本东京都大学的冈部裕高教授。统计物理学中的计算机模拟已经在物理学的各个领域取得了令人印象深刻的成果。随着并行计算平台的出现，模拟相当大的系统已经成为可能，我们现在可以认真考虑通过使用互补算法在长度尺度上跨越许多数量级的方法。然而，在物理学中有许多问题，阻碍进展的不是系统的大小，而是可以检查的有限的时间尺度。本次研讨会的目标是重点了解在不同系统中出现的长时间尺度问题，并研究克服这些困难的方法。研讨会的重点包括以下主题：1)临界减速-放松和动态；2)经典模型的聚类算法；3)旋转眼镜和挫折感；4)玻璃及玻璃成型；5)聚合物和蛋白质；6)量子模拟方法；7)纳米级系统和磁化反转。研讨会的组织者特别努力让年轻的研究人员作为参与者和观察员参与。与该领域的日本专家交流想法和数据将使美国参与者能够推进自己的工作，并为未来的合作项目奠定基础。预计论文将发表在《现代物理学杂志c》上。此外，个别论文将在乔治亚大学模拟物理中心提供。＊＊＊

9817720LandauThis award supports the participation of American scientists in a U.S.-Japan seminar on Understanding and Conquering Long Time Scales in Computer Simulations, to be held in Hawaii from August 9-12, l999. The co-organizers are Professors David Landau at the University of Georgia and Yutaka Okabe at the Tokyo Metropolitan University in Japan. Computer simulations in statistical physics have resulted in impressive gains in knowledge in diverse areas of physics. With the advent of parallel computing platforms, it has become possible to simulate quite large systems and we can now seriously consider ways to span many orders of magnitude in length scale by using complementary algorithms. There are many problems in physics, however, where it is not the size of the system that hinders progress but rather the restricted timescales that can be examined.The goal of this seminar is to focus on understanding the problems with long time scales, which occur in diverse systems, and to examine ways of overcoming these difficulties. The focus of the seminar involves the following topics: 1) critical slowing down - relaxation and dynamics; 2) cluster algorithms for classical models; 3) spin glasses and frustration; 4) glasses and glass formation; 5) polymers and proteins; 6) quantum simulation methods; and 7) nanoscale systems and magnetization reversal. Seminar organizers have made a special effort to involve younger researchers as both participants and observers. The exchange of ideas and data with Japanese experts in this field will enable U.S. participants to advance their own work, and will set the stage for future collaborative projects. It is anticipated that the proceedings will be published in the "Journal of Modern Physics C." In addition, the individual papers will be available at the Center for Simulation Physics at the University of Georgia. ***