报告题目：W-algebras and 4d N=2 SCFTs from M5 branes

报告人：颜文斌教授（清华大学）

报告时间：2019年3月25号（周一）15：30

报告地点：天津大学新校区理学院256

报告摘要：In this talk, we will review the correspondence between 4d N=2 superconformal field theories (SCFTs) and 2d vertex operator algebras (VOAs). For 4d SCFTs from M5 branes, corresponding VOAs are W-algebras with an explicit construction. Observables in both Higgs and Coulomb branches of SCFTs are identified with data in VOAs. Various new interesting properties of 2d VOAs such as level-rank duality, conformal embedding, collapsing levels, coset constructions for known VOAs can also be derived from 4d theory.

报告人简历：清华大学丘成桐数学科学中心副教授，哈佛大学数学科学与应用研究中心博士后，加州理工大学”Sherman Fairchild Prize”博士后，石溪大学理论物理博士，清华大学物理学士。

代表作：

[1] A. Gadde, L. Rastelli, S. S. Razamat and W. Yan, "Gauge Theories and Macdonald Polynomials", Commun. Math. Phys. 319, 147 (2013).

[2] A. Gadde, L. Rastelli, S. S. Razamat and W. Yan, "The 4d Superconformal Index from q-deformed 2d Yang-Mills", Phys. Rev. Lett. 106, 241602 (2011).

[3] S. Cecotti, J. Song, C. Vafa and W. Yan, "Superconformal Index, BPS Monodromy and Chiral Algebras", arXiv:1511.01516 [hep-th].

[4] B. Haghighat, W. Yan and S. T. Yau, "ADE String Chains and Mirror Symmetry", arXiv:1705.05199 [hep-th].

[5] L. Fredrickson, D. Pei, W. Yan and K. Ye, "Argyres-Douglas Theories, Chiral Algebras and Wild Hitchin Characters", arXiv:1701.08782 [hep-th].