朱 伟 副教授学术报告
Title: Critical Phenomena on a Quantum Fuzzy Sphere: Uncovering Conformal Symmetry in the 3D Ising Transition
Speaker: Wei Zhu (朱伟)
Affiliation: Westlake Universtiy（西湖大学）
Time: 14:00-15:00, Tuesday, 3rd September, 2024 (UTC+8, Beijing Time)
Venue: Room 1502, Shing-Tung Yau Center, Yifu Architecture Building, Sipailou Campus of Southeast University, Nanjing
（东南大学四牌楼校区逸夫建筑馆丘成桐中心1502室）
Inviter: Yunfeng Jiang （江云峰）
Abstract
We introduce a theoretical scheme to study the phase transition and critical phenomena on the space-time geometry S^{d-1}\times R, using the "fuzzy (non-commutative) sphere" regularization. As a showcase, we apply this scheme to the quantum version of 3D Ising phase transition. We demonstrate almost prefect state-operator correspondence (i.e. radial quantization), an important property of conformal field theory. The complete conformal data (scaling dimensions, operator product expansion coefficients, etc.) have been explicitly worked out, many of which go beyond the current conformal bootstrap computation. Moreover, our result directly elucidates the emergent conformal symmetry of the 3D Ising transition, a conjecture made by Polyakov half a century ago.
Speaker
Dr. Wei ZHU received his B.S. in applied physics (2007) and Ph.D. degree in physics (2012), both from University of Science and Technology of China. After getting his Ph.D. degree, he performed post-doctoral research at California State University Northridge, Princeton University and Los Alamos National Lab. In 2018 he joined Westlake University as an Assistant Professor.
https://www.westlake.edu.cn/faculty/wei-zhu.html