报告题目：Thermodynamical Bethe Ansatz for Fishnet CFT

报告人：钟德亮（以色列特拉维夫大学）

报告时间：2020 年 5 月 28 日 15:30（北京时间）

报告地点：在线报告（ 腾讯会议 ID：184 942 385）

报告摘要：

In this talk, we will introduce the basics and recent developments for the newly proposed "fishnet'' conformal field theories. We present the TBA equations and the Y-system for the exact spectrum of general multi-magnon local operators in the D-dimensional anisotropic version of the bi-scalar fishnet CFT. The mixing matrix of such operators is given in terms of fishnet planar graphs of multi-wheel and multi-spiral type. These graphs probe the two main building blocks of the TBA approach that are the magnon dispersion relation and the magnon scattering matrix and which we both obtain by diagonalising suitable graph-building operators. We also obtain the dual version of the TBA equations, which relates, in the continuum limit,  D-dimensional graphs to two-dimensional sigma-models in AdS_{D+1}. It allows us to verify a general formula obtained by A. Zamolodchikov for the critical coupling.

报告人简历：

钟德亮，2014年本科毕业于北京大学，2019年在法国巴黎高等师范学院获得博士学位，2019年至今在以色列特拉维夫大学做博士后。