U.S.-Turkey Cooperative Research: Many-Body Effects in the Photoionization Process

技术描述：这个美国和土耳其的合作研究项目涉及来自佐治亚州立大学和伊斯坦布尔马尔马拉大学的物理学家，土耳其将启动新的原子光电离多体效应全尺度分析。项目资金将使马尔马拉大学的Zikri Altun博士能够与佐治亚州立大学的Steven Manson博士和他的团队合作。此外，曼森博士还将参观阿尔顿博士的实验室，并与他的团队一起工作。这项新的合作研究工作将集中在使用多体微扰理论的开壳原子的光电离上，特别强调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致电离。随着新的强大的同步辐射光源的出现，这类系统将更容易被探索，从而使拟议的研究变得非常及时。这个理论物理项目通过使美国和土耳其的顶尖专家能够将互补的人才结合在一起，并在相互感兴趣和能力很强的领域汇集研究资源，从而实现了促进科学知识的计划目标。

Technical Narrative: This U.S.-Turkey collaborative research project involving physicists from the Georgia State University and Marmara University in Istanbul, Turkey will launch a new full-scale analysis of many-body effects in atomic photoionization. Project funding will enable Dr. Zikri Altun of Marmara University to work with Dr. Steven Manson and his team at Georgia State University. Additionally, Dr. Manson will visit Dr. Altun's laboratory and work with his team. This new collaborative research effort will focus on photoionization of open-shell atoms using many- body perturbation theory 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, thus rendering the proposed studies quite timely. This project in theoretical physics fulfills the program objective of advancing scientific knowledge by enabling leading experts in the United States and Turkey to combine complementary talents and pool research resources in areas of strong mutual interest and competence.