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题目（Title）：
Amplitude from crossing-symmetric celestial OPE
主讲人（Speaker）：
马文杰
开始时间（Start Time）：
2025-05-09 14:00
结束时间（End Time）：
2025-05-09 15:30
报告地点（Place）：
物质学院5-103教室
主办单位（Organization）：
物质科学与技术学院
协办单位(Co-organizer)：
简介（Brief Introduction）：
报告人简介：
Wen-Jie Ma is an Assistant Professor at Shanghai Institute for Mathematics and Interdisciplinary Sciences (SIMIS). Prior to joining SIMIS, he served as a Postdoctoral Research Scholar at Yau Mathematical Sciences Center of Tsinghua University and Yanqi Lake Beijing Institute of Mathematical Sciences and Applications (BIMSA). He obtained his Ph.D in physics at Laval University in 2021.
Professor Ma’s current research interests mainly foucs on conformal field theory and the principle of holography, including non-perturbative booststrap program, AdS/CFT, dS/CFT as well as celestial
holography.
讲座摘要：
Assuming the existence of crossing symmetric celestial OPE, we propose a method to construct four-point massless scattering amplitudes in the framework of celestial holography. This method does not require knowledge of the Lagrangian in the bulk, and instead relies only on CFT techniques and a remarkable property: scattering amplitudes can be derived from a single conformal block coefficient in celestial CFT. Utilizing this method, we construct the MHV amplitudes in pure Yang-Mills, pure gravity, and Einstein-Yang-Mills theories.
邀请人：Alexander Ochirov
Wen-Jie Ma is an Assistant Professor at Shanghai Institute for Mathematics and Interdisciplinary Sciences (SIMIS). Prior to joining SIMIS, he served as a Postdoctoral Research Scholar at Yau Mathematical Sciences Center of Tsinghua University and Yanqi Lake Beijing Institute of Mathematical Sciences and Applications (BIMSA). He obtained his Ph.D in physics at Laval University in 2021.
Professor Ma’s current research interests mainly foucs on conformal field theory and the principle of holography, including non-perturbative booststrap program, AdS/CFT, dS/CFT as well as celestial
holography.
讲座摘要：
Assuming the existence of crossing symmetric celestial OPE, we propose a method to construct four-point massless scattering amplitudes in the framework of celestial holography. This method does not require knowledge of the Lagrangian in the bulk, and instead relies only on CFT techniques and a remarkable property: scattering amplitudes can be derived from a single conformal block coefficient in celestial CFT. Utilizing this method, we construct the MHV amplitudes in pure Yang-Mills, pure gravity, and Einstein-Yang-Mills theories.
邀请人：Alexander Ochirov
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