Orateur
Wenqi Ke
(LPTHE)
Description
Consistent equations of motion and Lagrangian for higher spin states is an old problem which is still under investigation. One important challenge comes from the "Velo-Zwanziger problem", which states that charged massive particles of spin>1, minimally coupled to an external electromagnetic field, suffer from acausality and loss of hyperbolicity. In this talk, I will present explicit consistent Lagrangians describing charged massive spin-3/2 and spin-2. Though coupled in the Lagrangian to lower spins, they appear decoupled in the resulting equations of motion.
Auteur principal
Wenqi Ke
(LPTHE)
