AdS Journal Club

报告人 Speaker:Xiaoyi Shi
组织者 Organizer:Pengxiang Hao, Kevin Loo
时间 Time:11:30 am (Beijing time), Friday
地点 Venue:W11, Ning Zhai building

Upcoming talk:


Title: Stringy ER=EPR

Speaker: Xiaoyi Shi

Time: 11:30 am-1:30 pm (Beijing time), Nov.18th(Friday), 2022

Abstract: In the paper 2104.07233, the authors gave a worldsheet realization of ER=EPR as a duality between string theory in a connected, eternal black hole, and in a superposition of disconnected geometries in an entangled state. In the talk I will briefly illustrate their construction, including 1. review of FZZ duality 2.the formulation of string perturbation theory in the TFD and HH states 3.the Lorentzian string dualities, emphasizing the interpretation of the Euclidean winding operators

References: 2104.07233




Past talks:


Title: Berends-Giele recursion and Lie polynomials

Speaker: Yi-Xiao Tao

Time: 11:30 am-1:30 pm (Beijing time), Nov.11th(Friday), 2022

Abstract: In this talk, I will introduce Lie polynomial currents based on Berends-Giele recursion for bi-adjoint scalar tree amplitudes that take values in Lie polynomials.

References: 2012.00519




Title: Quantum Liouville theory

Speaker: Pengxiang Hao

Time: 11:30 am-1:30 pm (Beijing time), Nov.4th(Friday), 2022

Abstract: I will talk about the Liouville theory for itself, without referring to its origin. In particular, I will focus on the quantum aspect including the quantization, central charge, states, operators and correlation functions. A semi-classical picture will also be introduced.

References: hep-th/0402009, hep-th/9304011




Title: 2D gravity and random matrices

Speaker: Kangning Liu

Time: 11:30 am-1:30 pm (Beijing time), Oct. 28th(Friday), 2022

Abstract:I will talk about the triangulation approach to calculate 2D gravitational partition function, its relation with matrix model, and some techniques to solve matrix model partition function.

References: hep-th/9306153




Title: Matrix theory and membrane

Speaker: Zhengyuan Du

Time: 11:30 am-1:30 pm (Beijing time), Oct. 21st (Friday), 2022

Abstract:I will talk about the matrix theory action from the membrane action. Then I will talk about the M-theory object from matrix theory.

References: (1)hep-th:0002016(2)1708.00734




Title: Introduction to the BMS_3 symmetry

Speaker: Zehua Xiao

Time: 11:30 am-1:30 pm (Beijing time), Oct. 14th (Friday), 2022

Abstract: In this talk, I will briefly introduce the 3D Poincare algebra and the Poincare symmetry at positive null infinity. I will focus on the asymptotic Einstein Gravity in 3D, then introduce the BMS group. If time is enough, I will briefly introduce the flat limits techniques.

References: 1610.08526, 1508.00920, 1001.1541




Title: Introduction to the BFSS matrix theory

Speaker: Wenxin Lai

Time: 11:30 am-1:30 pm (Beijing time), Oct. 9th (Sunday), 2022

Abstract: In this talk, I will give a very brief introduction to the BFSS M(atrix) Theory and try to explore the motivation, evidence for this model as a first example of holographic duality. Refs: hep-th/9610043, hep-th/9510135




Title:Towards the non-perturbative cosmological bootstrap

Speaker: Reiko Liu

Time: 11:30 am-1:30 pm (Beijing time), Sep. 30th (Friday), 2022

Abstract: I'll talk about the properties of late-time correlators in dS spacetime, including the late-time expansion of bulk operators and the Källen-Lehmann spectral decomposition of two-point functions. Ref: 2107.13871




Title: Carrollian perspective on celestial CFT

Speaker: Xianjin Xie

Time: 11:30 am-1:30 pm (Beijing time), Sep. 16th (Friday), 2022

Abstract: The first goal is to show the same kinematic properties between 4d asymptotical spacetime and 3d sourced conformal Carrollian field theory(CCarrFT). Then show that the Ward identities of the sourced CCarrFT reproduce the BMS Ward identities of the celestial CFT after performing a certain integral transformations.  Ref: 2202.04702