Dec 5 – 7, 2022
Europe/Paris timezone

Consistent propagation of spin 3/2 and 2 in an electromagnetic background

Dec 5, 2022, 4:15 PM
Amphi E030, bâtiment E2, rez-de-chaussée (Tours)

Amphi E030, bâtiment E2, rez-de-chaussée


Institut Denis Poisson Université de Tours Facultés des Sciences et Techniques Parc de Grandmont 37200 Tours FRANCE


Wenqi Ke (LPTHE)


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.

Primary author

Wenqi Ke (LPTHE)

Presentation materials