SI2-SSE: Developing and Deploying Path-Integral Quantum Simulation Tools for a Broad Research Community

SI2-SSE：为广泛的研究社区开发和部署路径积分量子模拟工具

• 批准号: 1148502
• 负责人: John Shumway
• 金额: $ 33.98万
• 依托单位: Arizona State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-06-01 至 2014-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1148502&HistoricalAwards=false
• 关键词: SI2; SSE; Developing; Deploying; Path

This award supports research and education activities that will make path integral Monte Carlo codes for simulation of atomic and molecular systems, and materials at the quantum mechanical level accessible to students and non-experts. This will stimulate new researchers to contribute fresh ideas and help build a larger base of users. The PI will pursue a strategy based on three principles: (i) On-going development of open-source software following software engineering practices must emphasize features that have a timely impact on science, encourage intuitive understanding, and assist non-expert users. (ii) Education and outreach in the form of tutorials, documentation, and workshops must dramatically lower the barrier for the use of path integral Monte Carlo by non-specialists. (iii) Development and execution of a set of high-impact projects -- in warm, dense matter, cold atoms, nano-electronics, and quantum chemistry -- by a network of collaborators which will demonstrate the research capabilities of the open-source path integral Monte Carlo code.The code under development already embodies many software design principles, including object oriented design, XML input, HDF5 output, GNU GPL open-source distribution, and code management in subversion. Under this project the PI will: (i) complete documentation, including tutorials with explanations of the scientific concepts; (ii) develop a set of benchmarks and unit tests, to document standard applications and verify proper execution of the code; (iii) coordinate a set of high-impact projects across a network of collaborators, (iv) develop a timeline and milestones for formal releases, with executables for UNIX, Macintosh, and Windows, including the pyQt4 graphical user interface; and (v) integrate these improvements into existing nanoHUB port and other software infrastructures. New computer code will be distributed under the General Public License, and analysis tools will use open-source python libraries.This award supports research and education activities to develop well engineered computer codes for the high accuracy simulation of electrons in materials and tiny structures made of a small number of atoms, and systems of atoms at the level of quantum mechanics. Developed computer codes will be made available to the broader research community through existing software centers, such as nanoHUB in a well documented form. This will enable students and non-experts to access and use the codes to perform simulations using path-integral techniques and to generate fresh ideas to advance the computational method. Path-integral methods have been applied so far to various problems where quantum mechanics is important, including electronic systems and devices on the nanoscale, cold atoms trapped by lasers, and some atoms and small molecules. The technique has high accuracy and has advantages over existing methods, but it has so far not been adequately developed. It also has great pedagogical value for teaching the principles of quantum mechanics.Students and junior scientists will be trained in the application of advanced computational methods to problems in nanotechnology.

该奖项支持研究和教育活动，使路径积分蒙特卡罗代码用于模拟原子和分子系统，以及学生和非专家可访问的量子力学水平的材料。这将激励新的研究人员贡献新的想法，并帮助建立更大的用户群。PI将根据三项原则采取一项战略：（i）遵循软件工程实践的开放源码软件的持续开发必须强调对科学有及时影响的功能，鼓励直观理解，并帮助非专业用户。(ii)以教程、文档和研讨会的形式进行的教育和推广必须大大降低非专业人员使用路径积分蒙特卡罗的障碍。(iii)开发和执行一系列高影响力的项目-在温暖，密集的物质，冷原子，纳米电子学和量子化学-由一个合作者网络，这将证明开放源代码路径积分蒙特卡罗代码的研究能力。正在开发的代码已经体现了许多软件设计原则，包括面向对象的设计，XML输入，HDF 5输出，GNU GPL开源发行版，和Subversion中的代码管理。在该项目下，主要研究者将：（一）完成文件编制，包括解释科学概念的教程;（二）制定一套基准和单元测试，以记录标准应用程序并核实代码的适当执行;（iii）在合作者网络中协调一系列高影响力的项目，（iv）为正式发布制定时间轴和里程碑，包括UNIX、Macintosh、和Windows，包括pyQt 4图形用户界面;以及（v）将这些改进集成到现有的nanoHUB端口和其他软件基础设施中。新的计算机代码将在通用公共许可证下分发，分析工具将使用开源Python库。该奖项支持研究和教育活动，开发工程良好的计算机代码，用于高精度模拟材料和由少量原子组成的微小结构中的电子，以及量子力学水平的原子系统。已开发的计算机代码将通过现有的软件中心（如nanoHUB）以有据可查的形式提供给更广泛的研究界。这将使学生和非专家访问和使用的代码进行模拟使用路径积分技术，并产生新的想法，以推进计算方法。路径积分方法已被应用到各种问题，其中量子力学是重要的，包括电子系统和设备的纳米尺度，冷原子被激光捕获，以及一些原子和小分子。该技术具有较高的精度，并具有优于现有方法的优点，但迄今为止尚未得到充分的发展。它对教授量子力学原理也具有很大的教学价值，学生和初级科学家将接受将先进的计算方法应用于纳米技术问题的培训。