【02.20】Seminar：On-Shell Scattering Meets Quantum Information Science
Seminar
报告题目：On-Shell Scattering Meets Quantum Information Science
报告人：殷喆伟，博士后，美国西北大学和阿贡国家实验室
主持人：贾宇，研究员，中国科学院高能物理研究所
报告时间：2025年2月20日（周四），上午10点
ZOOM：88278160027 / 123456
链接：https://us02web.zoom.us/j/88278160027?pwd=ByqeEqWD492DFjsIS6AjL4N2zF3nl5.1
报告摘要：
The scattering amplitudes program aims to obtain observables from quantum field theory without cumbersome local formulations such as Feynman diagrams. A key step in this procedure is to determine the constraints satisfied by the on-shell amplitudes, according to the guiding principles of the theory in consideration. Recently a novel group of constraints originated from concepts in quantum information science has been increasingly drawing people's attention. I will first discuss the investigation on the amount of entanglement resulted in particle scattering, and reveal a universal correspondence between entanglement entropy and (semi)-inclusive cross sections. A careful formulation of wave packets for the initial states is essential in arriving at this relation. I will then discuss in the context of particle scattering the notion of magic, which quantifies the computational advantage of quantum states over classical algorithms. Research on this topic is still in its early stage, and can benefit both fundamental physics and quantum information science.
个人简介：
殷喆伟博士于2011至2015年就读于北京大学，获得物理学学士学位；2015年至2020年就读于美国西北大学（Northwestern University），获得理论物理学博士学位；2020年至2023年就职于瑞典乌普萨拉大学（Uppsala Universitet）理论物理系，目前是美国西北大学和阿贡国家实验室（Argonne National Laboratory）联合博士后研究员。研究方向为高能理论物理，包括有效场论、散射振幅等方面的新性质、新方法的探索，以及这些新成果在粒子物理唯象学、引力波唯象学和量子信息理论等方面的应用。
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