Manifestly Covariant Worldline Actions from Coadjoint Orbits. Part II: Twistorial Descriptions

Euihun Joung, TaeHwan Oh

Worldline actions for various twistor particles in AdS spacetimes are constructed from the coadjoint orbits of $Sp(4,\mathbb{R})$, $SU(2,2)$ and $O^{\ast }(8)$ as constrained Hamiltonian…