5 papers
Light-Front approach to massless Higher-Spin interactions
Mattia Serrani
This thesis studies massless higher-spin interactions in the Light-Front approach by analysing the closure of the Poincaré algebra at quartic order. We first solve the light-c…
Amplitudes in self-dual (higher-spin) theories
Mattia Serrani, Evgeny Skvortsov
Self-dual theories are powerful toy models of their completions. It was shown recently that there are infinitely many SD-theories once massless higher-spin fields are allowed. The…
Massless spinning fields on the Light-Front: quartic vertices and amplitudes
Mattia Serrani
Within the light-front approach in flat space, we study the closure of the Poincaré algebra at the quartic order, specifically the non-holomorphic constraint involving both MHV and…
Associativity of celestial OPE, higher spins and self-duality
Mattia Serrani
We highlight and clarify the connection between several ideas and self-dual theories: (a) the operator product expansion (OPE) associativity in celestial conformal field theory (CC…
On classification of (self-dual) higher-spin gravities in flat space
Mattia Serrani
There is a great number of higher-spin gravities in that can have both finite and infinite spectra of fields and can be formulated as Chern-Simons theories. It was believed th…