US-Turkey Cooperative Research: Many-Body Effects in the Photoionization Process

描述：该奖项是对亚特兰大佐治亚州立大学物理系的Steven Manson博士和土耳其伊斯坦布尔Marmara大学物理系的Altun Zikry博士的合作项目的支持。该项目的重点是利用多体微扰理论(MBPT)研究开壳原子的光电离，特别是非常困难的过渡金属和稀土元素，以及闭壳原子激发下的光电离。随着新的强大的同步辐射光源的出现，这类系统将更容易在实验室中进行探索，从而使这项研究变得非常及时。MBPT代码的进一步发展将产生将这一非常强大的方法应用于以前工作量无法管理的系统并充分利用计算机硬件革命的可能性。范围：这项研究项目将有助于促进关于电子和光子与原子相互作用的科学知识。它涉及拥有互补专业知识的美国和土耳其科学家。曼森博士擅长从概念上简单且设计精良的光电离过程和高能带电粒子电离原子的计算中提取物理见解。阿尔顿博士最熟悉的是早先为多体微扰理论开发的代码的使用。这一提议符合在对双方都有利的领域加强美外合作的国际目标。

Description: This award is for support of a cooperative project by Dr. Steven Manson of the Physics Department at Georgia State University in Atlanta and Dr. Altun Zikry of the Physics Department at Marmara University in Istanbul, Turkey. The project focuses on photoionization of open-shell atoms using many-body perturbation theory (MBPT), with particular emphasis on the very difficult transition metals and rare earth elements, and photoionization with excitation of closed-shell atoms. With the advent of the new powerful synchrotron light sources, these kinds of systems will be more readily explored in the laboratory, thus rendering this study quite timely. The further development of the MBPT codes will engender the possibilities of applying this very powerful methodology to systems where the amount of work was previously unmanageable and take full advantage of the revolution in computer hardware. Scope: This research project will be useful in promoting the scientific knowledge on the electron and photon interactions with atoms. It involves US and Turkish scientists with complementary expertise. Dr. Manson is an expert at extracting physical insights from conceptually simple and well-designed calculations of photoionization processes and the ionization of atoms by high-energy, charged particles. Dr. Altun is most familiar with the use of the codes developed earlier for many-body perturbation theory. This proposal meets INT objective of increasing U.S.-foreign collaboration in areas that benefit both sides.