Nonlinear W ∞ as asymptotic symmetry of three-dimensional higher spin AdS gravity
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In this article, the authors investigated the asymptotic symmetry algebra of (2+1)-dimensional higher spin, anti-de Sitter gravity, and showed that it is a nonlinearly realized W ∞ algebra with classical central charges.Abstract:
We investigate the asymptotic symmetry algebra of (2+1)-dimensional higher spin, anti-de Sitter gravity. We use the formulation of the theory as a Chern-Simons gauge theory based on the higher spin algebra hs(1, 1). Expanding the gauge connection around asymptotically anti-de Sitter spacetime, we specify consistent boundary conditions on the higher spin gauge fields. We then study residual gauge transformation, the corresponding surface terms and their Poisson bracket algebra. We find that the asymptotic symmetry algebra is a nonlinearly realized W ∞ algebra with classical central charges. We discuss implications of our results to quantum gravity and to various situations in string theory.read more
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Higher Spin Black Holes
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TL;DR: In this article, the authors studied classical solutions of three dimensional higher spin gravity in the Chern-Simons formulation and found solutions that generalize the BTZ black hole and carry spin-3 charge.
References
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