# Towards Higher Spin Interactions from Holography: Four point exchanges<

#### Towards Higher Spin Interactions from Holography: Four point exchanges<

- Event time: 2:00pm
- Event date: 22nd October 2014
- Speaker: Dmitry Ponomarev (LMU Munich)
- Location: Higgs Centre Seminar Room, Room 4305, James Clerk Maxwell Building (JCMB) James Clerk Maxwell Building Peter Guthrie Tait Road Edinburgh EH9 3FD GB

### Event details

We address 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.

### About Particle Physics Theory seminars

The Particle Physics Theory seminar is a weekly series of talks reflecting the diverse interests of the group. Topics include analytic and numerical calculations based on the Standard Model of elementary particle physics, theories exploring new physics, as well as more formal developments in gauge theories and gravity..