Abstract
We investigate a higher-derivative scalar field model in a fixed d + 1 dimensional AdS background as a toy model for a gravitational dual to a higher-rank logarithmic CFT. The holographic two-point correlation functions on the boundary agree with higher-rank LCFT correlation functions. For odd rank, the theory allows for a truncation to a nontrivial subspace with non-negative scalar product. We discuss possible implications for higherderivative critical gravity theories.
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Bergshoeff, E.A., de Haan, S., Merbis, W. et al. Unitary truncations and critical gravity: a toy model. J. High Energ. Phys. 2012, 134 (2012). https://doi.org/10.1007/JHEP04(2012)134
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DOI: https://doi.org/10.1007/JHEP04(2012)134