Seminar Dmitry Ponomarev

Speaker: 
Dmitry Ponomarev
Affiliation: 
Arnold Sommerfeld Center for Theoretical Physics, München
Title: 
Towards Higher Spin Interactions from Holography: Four point exchanges
Abstract: 

We adress the problem of reconstruction of higher spin interactions through holography, namely, we aim to find different order higher spin vertices by requiring that the associated Witten diagrams reproduce correlation functions of the boundary free O(N) vector model. Our first goal is the quartic self-interaction vertex of scalar field. According to the AdS/CFT dictionary it can be extracted from the difference between the boundary four point correlation function and the infinite sum of the bulk higher spin four point exchanges. In this talk I will present the novel method of computation of the four point higher spin exchange Witten diagram for scalars in AdS.

Location: 
5111.0135
Date: 
Thursday, November 13, 2014 - 12:30