Higher spin AdS${}_3$ gravity and Tits-Satake diagrams

Abstract

We investigate higher spin AdS${}_3$ gravity with real split forms of complex A${}_N$ B${}_N$, C${}_N$ and D${}_N$ Lie algebras. This is done by linking $SO(1,2)$ spin multiplets with splitted root systems using Tits-Satake diagrams of real forms. Unlike $SL(N,R)$, we show that the orthogonal families have two different higher spin (HS) spectrums: vectorial and spinorial. We find amongst others that the spinorial spectrum has an isolated spin j${}_{\mathcal{N}}$ given by $\mathcal{N}\left(\mathcal{N}+1\right)/2$ for $SO(\mathcal{N},1+\mathcal{N})$ and $\mathcal{N}\left(\mathcal{N}-1\right)/2$ for $SO(\mathcal{N},\mathcal{N})$. We implement these results into the computation of the HS partition functions in these gravity theories and identify the individual contributions of the higher spin fields; valuable to manoeuver the HS-BTZ black hole partition function

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Cited by in corpus (1)

• Topological 4D gravity and gravitational defects