清华主页 EN
导航菜单

Z3 Discrete Theta Angle in 10D Heterotic String Theory and Topological Modular Forms | BIMSA-Tsinghua String Seminar

来源: 04-29

时间:2024-04-30 Tue 14:00-15:00

地点: A3-1-101 ZOOM: 787 662 9899 BIMSA

组织者:Wei Cui, Fengjun Xu

主讲人:Hao Zhang Kavli lPMU, University of Tokyo ​

Abstract

In this talk, we identify a Zs discrete gravitational theta angle in the non-supersymmetricSO(16) x SO(16) heterotic string, which is detected by a 10D spacetime manifold that is anSp(2) group manifold. In the first part, we explain the string theory computation that identifies thisZ, theta angle, involving non-perturbative anomaly on the instantonic NS5 branes. in the secondpart, we motivate our endeavor by Stolz-Teichner conjecture which relates 2D(0, 1) SQFT toTopological modular forms. Our result identifies two generators of torsional classes in TMF ofspecific degrees by explicit 2D(0,1) theories: one begins a 2D(0,1) sigma model to Sp(2), theother being the SO(16)xSO(16) chiral fermionic SCFT. Based on 2403.08861 with YujiTachikawa.

返回顶部
相关文章
  • Instruction for choosing courses in the direction Algebra and Number

    Please download the file for more informatio

  • 清华大学求真书院2023年全国优秀大学生冬令营通知

    清华大学数学学科有着辉煌而悠久的历史和良好的育人传统。2009年12月清华大学成立数学科学中心,邀请国际著名数学家、首位华裔菲尔兹奖获得者丘成桐先生担任中心主任。作为支持清华大学发展数学学科的重大战略举措,2014年底教育部批准依托清华大学成立丘成桐数学科学中心。在丘成桐先生的领导下,数学科学中心已经建立了一支由顶尖学术大师和中青年数学家组成的研究队伍。2021年初, 清华大学在人才培养体系中另辟特区,设立...