N = 2 AdS4 supergravity, holography and Ward identities

L. Andrianopoli, B. L. Cerchiai, R. Matrecano, OLIVERA MISKOVIC, R. Noris, R. Olea, L. Ravera, M. Trigiante

Research output: Contribution to journalArticlepeer-review

Abstract

We develop in detail the holographic framework for an N = 2 pure AdS supergravity model in four dimensions, including all the contributions from the fermionic fields and adopting the Fefferman-Graham parametrization. We work in the first order formalism, where the full superconformal structure can be kept manifest in principle, even if only a part of it is realized as a symmetry on the boundary, while the remainder has a non-linear realization. Our study generalizes the results presented in antecedent literature and includes a general discussion of the gauge-fixing conditions on the bulk fields which yield the asymptotic symmetries at the boundary. We construct the corresponding super- conformal currents and show that they satisfy the related Ward identities when the bulk equations of motion are imposed. Consistency of the holographic setup requires the super- AdS curvatures to vanish at the boundary. This determines, in particular, the expression of the super-Schouten tensor of the boundary theory, which generalizes the purely bosonic Schouten tensor of standard gravity by including gravitini bilinears. The same applies to the superpartner of the super-Schouten tensor, the conformino. Furthermore, the vanishing of the supertorsion poses general constraints on the sources of the three-dimensional boundary conformal field theory and requires that the super-Schouten tensor is endowed with an antisymmetric part proportional to a gravitino-squared term.

Original languageEnglish
Article number141
JournalJournal of High Energy Physics
Volume2021
Issue number2
DOIs
StatePublished - Feb 2021
Externally publishedYes

Keywords

  • AdS-CFT Correspondence
  • Supergravity Models

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