AdS (super)projectors in three dimensions and partial masslessness

Jul 26, 2021
37 pages
Published in:
  • JHEP 10 (2021) 090
  • Published: Oct 12, 2021
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Abstract: (Springer)
We derive the transverse projection operators for fields with arbitrary integer and half-integer spin on three-dimensional anti-de Sitter space, AdS3_{3}. The projectors are constructed in terms of the quadratic Casimir operators of the isometry group SO(2, 2) of AdS3_{3}. Their poles are demonstrated to correspond to (partially) massless fields. As an application, we make use of the projectors to recast the conformal and topologically massive higher-spin actions in AdS3_{3} into a manifestly gauge-invariant and factorised form. We also propose operators which isolate the component of a field that is transverse and carries a definite helicity. Such fields correspond to irreducible representations of SO(2, 2). Our results are then extended to the case of N \mathcal{N} = 1 AdS3_{3} supersymmetry.
Note:
  • 37 pages; V2: New material added to conclusion, published version
  • Supergravity Models
  • Superspaces
  • operator: Casimir
  • mass: topological
  • invariance: gauge
  • group: isometry
  • transverse
  • spin: high
  • supersymmetry: 1
  • AdS(3)