报告题目:  Holographic four-point functions in Toda field theories in AdS_2

报告人:  欧阳昊 (北欧理论物理研究所)

报告时间：2020 年 4 月 9 日 15：30（北京时间）

报告地点:  在线报告（腾讯会议  ID: 917 928 375）

PPT:   PPT.pdf

报告摘要:

In this talk, I will introduce Toda field theories in a classical Euclidean AdS_2 background. The boundary operators in Toda field theories on AdS_2 are in one-to-one correspondence with the generators in the W-algebras. To support this correspondence, I will show that the tree-level four-point functions of boundary operators in some simple Toda field theories take the same form as the four-point functions of generators in the corresponding W-algebras in the large central charge limit.  I will also discuss some classically integrable deformations of Liouville field theory in AdS_2 and show how the deformations affect the boundary four-point function.

报告人简历：欧阳昊，2013年本科毕业于中山大学，2018年于中国科学院大学获得博士学位。2018年起于北欧理论物理研究所从事博士后研究工作。

代表作:

[1] H. Ouyang, “Holographic four-point functions in Toda field theories in AdS_2 ,” JHEP 04 (2019) 159, arXiv:1902.10536 [hep-th].

[2] N. Bai, H.-H. Chen, H. Ouyang, and J.-B. Wu, “Two-Loop Integrability of ABJM Open Spin Chain from Giant Graviton,” arXiv:1901.03949 [hep-th]. [JHEP03,193(2019)].

[3] H.-H. Chen, H. Ouyang, and J.-B. Wu, “Open Spin Chains from Determinant Like Operators in ABJM Theory,” Phys. Rev. D98 no. 10, (2018) 106012, arXiv:1809.09941 [hep-th].

[4] A. Mauri, H. Ouyang, S. Penati, J.-B. Wu, and J. Zhang, “BPS Wilson loops in N ≥ 2  superconformal Chern-Simons-matter theories,” JHEP 11 (2018) 145, arXiv:1808.01397 [hep-th].

[5] H. Ouyang, “Semiclassical spectrum for BMN string in Sch_5 × S^5 ,” JHEP 12 (2017) 126  arXiv:1709.06844 [hep-th].