U.S.-Japan Seminar: Simulations of Complex Behavior from Simple Models

0456399兰道该奖项支持美国科学家参与美国- 2005年6月26日至29日在夏威夷卡纳帕利为科学家举办的关于从简单模型模拟复杂行为的日本联合讲习班。 共同组织者是雅典格鲁吉亚大学的大卫朗道教授和日本东京首都大学的冈部丰教授。 统计物理学中的计算机模拟在物理学的不同领域带来了令人印象深刻的知识增益。 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的许多数量级的方法。 物理学中有许多问题，其中感兴趣的模型不是很复杂，但结果行为极其复杂，进步需要非常的措施。 关于某些模型是否有向有序状态的相变的问题仍然存在。 因此，讲习班的目标是着重了解在不同系统中出现的具有长期规模和复杂结构的问题，并研究克服这些困难的方法。 感兴趣的主题范围从不同自旋模型中临界指数的确定到复杂系统（如玻璃）中相变的性质，以及复杂系统（如自旋玻璃和折叠蛋白质模型）中基态的描述。 也将有重点发展的经典和量子模型的算法，以处理长时间尺度，包括那些发生在非常低的温度成核。 共同组织者在该领域具有互补的科学专门知识。 这使他们能够评估和吸引最好的科学研究人员参与。 设计有效的策略，使计算机模拟这些物理系统的实际可能会导致我们的蛋白质折叠，玻璃，生长和各种数学模型的研究取得重大进展，这些模型多年来一直是一个挑战。 也有很大的可能性刺激新算法的发展，刺激新的科学。 讲习班的组织者作出了特别努力，使博士后、研究生和代表人数不足的群体既作为与会者又作为观察员参加。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。 研讨会之后，组织者计划建立一个研讨会网页。 会议记录将在本网站上公布。

0456399LandauThis award supports the participation of American scientists in a U.S.-Japan joint workshop for scientists on simulations of complex behavior from simple models to be held in Kannapali, Hawaii from June 26-29, 2005. The co-organizers are Professor David Landau at the University of Georgia in Athens and Professor 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 where the model of interest is not very complicated but the resultant behavior is extremely complex and progress demands extraordinary measures. Questions still remain about whether or not certain models even have phase transitions to ordered states. Therefore, the goal of the workshop is to focus on understanding the problems with long time scales and complex structures which occur in diverse systems and to examine ways of overcoming these difficulties. The topics of interest range from the determination of critical exponents in different spin models to the nature of phase transitions in complex systems, such as glasses, and the description of groundstates in complex systems such as spin glasses and folded protein models. There will also be emphasis on development of algorithms for both classical and quantum models to deal with the long time scales including those which occur for nucleation at very low temperatures. The co-organizers have complementary scientific expertise in the field. This enables them to evaluate and attract the best science researchers to participate. Devising effective strategies that would make computer simulation of these physical systems practical could lead to significant advances in our study of protein folding, glasses, growth, and various mathematical models that have presented a challenge over the years. There is also a high probability of stimulating the development of new algorithms and stimulating new science. The workshop organizers have made a special effort to involve postdocs, graduate students and underrepresented groups as both participants and observers. The exchange of ideas and data with Japanese experts in the field will enable U.S. participants to advance their own work, and will set the stage for future collaborative projects. Following the seminar the organizers plan to establish a workshop web page. Conference proceedings will be published on this web site.