Title: Spinning Massive amplitudes from flat limit of AdS/CFT

Speaker: Mritunjay Kumar Verma (Southampton U.)

Google Meet link: https://meet.google.com/oyx-cdgf-qqv

Abstract: The AdS/CFT correspondence is an explicit realisation of holographic principle that has given invaluable insights into the features that are expected to be present in a quantum theory of gravity. One may ask whether this correspondence can be used to obtain quantitative results in more general situations. In this work, we analyse the couplings and correlators of the spinning massive fields in the flat space by considering a suitable flat limit of AdS/CFT. Utilizing the momentum representation of conformal field theory, we show how the 3-point AdS amplitude/CFT correlators give rise to the 3-point amplitude involving a complex massive field and an abelian gauge field in the flat space. The CFT 3-point correlator depends upon 3 parameters that correspond to the charge, gyromagnetic ratio and the quadrupole moment of the massive vector field in the flat limit.