Higher spin de Sitter quasinormal modes

A bstract We construct higher spin quasinormal modes algebraically in D -dimensional de Sitter spacetime using the ambient space formalism. The fall into two nonunitary lowest-weight representations of $$ \mathfrak{so} so (1 , ). From a local QFT point view, massless fields are produced by gauge-invariant boundary conserved currents and higher-spin Weyl tensors inserted at southern pole past boundary. also show that spectrum massless/massive spin- s field is precisely encoded Harish-Chandra character corresponding to unitary SO(1 ) representation.