A bstract We develop a Mellin space approach to boundary correlation functions in anti-de
Sitter (AdS) and de Sitter (dS) spaces. Using the Mellin-Barnes representation of correlators …

We present a no-go result on consistent Noether interactions among higher-spin gauge
fields on anti–de Sitter space-times. We show that there is a nonlocal obstruction at the …

A bstract We develop a systematic approach to evaluating AdS loop amplitudes with
spinning legs based on the spectral (or “split”) representation of bulk-to-bulk propagators …

We study conformal partial waves (CPWs) in Mellin space with totally symmetric external
operators of arbitrary integer spin. The exchanged spin is arbitrary, and includes mixed …

A bstract We compute the four-point function of scalar operators in CFTs with weakly broken
higher spin symmetry at arbitrary't Hooft coupling. We use the known three-point functions in …

A bstract We construct a new class of differential operators that naturally act on AdS
harmonic functions. These are weight shifting operators that change the spin and dimension …

A bstract We study the manifestly covariant and local 1-loop path integrals on S d+ 1 for
general massive, shift-symmetric and (partially) massless totally symmetric tensor fields of …

A bstract We construct higher spin quasinormal modes algebraically in D-dimensional de
Sitter spacetime using the ambient space formalism. The quasinormal modes fall into two …

We develop further the general light-cone gauge approach in AdS space and apply it for
studying continuous-spin field. For such field, we find light-cone gauge Lagrangian and …

A bstract We use light-cone gauge formalism to study interacting massive and massless
continuous-spin fields and finite component arbitrary spin fields propagating in the flat …