The Bisognano-Wichmann theorem in algebraic quantum field theory.
Bin Gui 归斌 (Tsinghua University)
14:00-16:30, May 22, 2026 Wenfu Building 502
Abstract:
Algebraic quantum field theory (AQFT) is a mathematically rigorous formulation
of quantum field theory based on operator algebras. The Bisognano-Wichmann theorem, discovered in the 1970s, relates Tomita-Takesaki theory to symmetries in AQFT. The purpose
of this talk is to provide a survey of this important theorem. I will first present the necessary background in AQFT, and then give a heuristic explanation of why the Bisognano-
Wichmann theorem holds.
About the speaker:
归斌博士目前担任清华大学丘成桐数学科学中心助理教授。他早年赴美深造，在范德堡大学取得博士学位，并于罗格斯大学完成博士后训练。其研究领域为二维共形场论，旨在通过严谨的数学工具探索物理理论的深层结构，并
在该交叉领域取得了一系列受到国际同行高度关注的学术成果。归斌教授在国际顶级学术平台上发表了多篇极具影响力的论文。他近期的突破性成果以独立作者身份发表于数学顶尖期Inventiones,Mathematicae。此前，他的多项重要研究已陆续见刊于 Communications in Mathematical Physics、Transactions of the AMS。
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