Alba Grassi 教授学术报告
Title: Holographic thermal correlators from supersymmetric instantons
Speaker: Prof. Alba Grassi
Affiliation: CERN & University of Geneva, Switzerland
Time: 17:00-18:00, Wednesday, 2nd November, 2022 (UTC+8, Beijing Time)
Inviter: Jie Gu (顾杰)
Venue: Zoom Meeting
Abstract
I will present an exact formula for the thermal scalar two-point function in four-dimensional holographic conformal field theories. The problem of finding it reduces to the analysis of the wave equation on the AdS-Schwarzschild background. The two-point function is computed from the connection coefficients of the Heun equation, which can be expressed in terms of the Nekrasov-Shatashvili partition function of an SU(2) supersymmetric gauge theory with four fundamental hypermultiplets. At large spin the instanton expansion of the thermal two-point function directly maps to the light-cone bootstrap analysis of the heavy-light four-point function. Using this connection, we obtain the OPE data of heavy-light double-twist operators directly from instanton counting in the SU(2) gauge theory.
About the Speaker
Alba Grassi is currently professor within SwissMAP at the Department of Theoretical Physics of CERN and visiting professor at the University of Geneva in Switzerland.
Her research fields of interest include Mathematical Physics, Quantum Field Theory and String Theory.
The seminar will be broadcasted online by Zoom.
Interested people are free to join, without registration in advance.
The Zoom info is
URL：https://us02web.zoom.us/j/3854420225?pwd=SXY4eWJKOTBFZWJDaE16aXpTamY1QT09
Meeting ID: 385 442 0225
Passcode: yauc