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Three-dimensional conformal geometry and prepotentials for four-dimensional fermionic higher-spin fields

par Henneaux, Marc ;Lekeu, Victor ;Léonard, Amaury;Matulich, Javier ;Prohazka, Stefan
Référence The journal of high energy physics (Online), 2018, 11, page (0-27), 156
Publication Publié, 2018-11-23

Article révisé par les pairs

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Résumé :

We introduce prepotentials for fermionic higher-spin gauge fields in four space-time dimensions, generalizing earlier work on bosonic fields. To that end, we first develop tools for handling conformal fermionic higher-spin gauge fields in three dimensions. This is necessary because the prepotentials turn out to be three-dimensional fields that enjoy both “higher-spin diffeomorphism” and “higher-spin Weyl” gauge symmetries. We discuss a number of the key properties of the relevant Cotton tensors. The reformulation of the equations of motion as “twisted self-duality conditions” is then exhibited. We show next how the Hamiltonian constraints can be explicitly solved in terms of appropriate prepotentials and show that the action takes then the same remarkable form for all spins.