29 September 2025 to 2 October 2025
HU Berlin, Campus Adlershof
Europe/Zurich timezone

The AdS4 × CP3 Virasoro-Shapiro Amplitude

1 Oct 2025, 13:40
40m
0119 (Schrödinger Centre)

0119

Schrödinger Centre

Rudower Chaussee 26, 12489 Berlin

Speaker

Dr T. Hansen

Description

I will present the derivation of the AdS Virasoro-Shapiro amplitude for the scattering of gravitons in type IIA string theory on AdS4xCP3. This is achieved by combining the structure of the OPE in the AdS/CFT dual ABJM theory with an ansatz for the amplitude as a string worldsheet integral over single-valued polylogarithms. In this way we fix the first two curvature corrections, which satisfy consistency checks in the high energy limit, the low energy expansion as previously fixed using supersymmetric localisation, and for the dimensions of the exchanged massive string operators, some of which have been independently computed using integrability. We also predict the strong coupling dimensions of some operators which have not been previously studied using integrability.

Presentation materials