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

9817720Landau1999年8月9日至12日在夏威夷举行的美日关于理解和克服计算机模拟中的长时间尺度的研讨会，该奖项支持美国科学家的参与。联合组织者是佐治亚大学的David Landau教授和日本东京都大学的Yutaka Okabe教授。统计物理学中的计算机模拟在物理学的各个领域的知识方面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来跨越长度尺度上的许多数量级的方法。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。这次研讨会的目的是集中理解在不同系统中出现的具有长时间尺度的问题，并研究克服这些困难的方法。研讨会的焦点涉及以下主题：1)临界减速-松弛和动力学；2)经典模型的集群算法；3)自旋玻璃和受挫；4)玻璃和玻璃形成；5)聚合物和蛋白质；6)量子模拟方法；7)纳米系统和磁化反转。研讨会组织者做出了特别努力，让年轻的研究人员既作为参与者又作为观察员。与日本专家在这一领域交换想法和数据将使美国参与者能够推进他们自己的工作，并将为未来的合作项目奠定基础。预计这些论文集将发表在《现代物理杂志C》上。此外，个别论文将在佐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. ***