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23 papers · 2 filters
Higher Spin Theories in AdS_3 and a Gravitational Exclusion Principle
Alejandra Castro, Arnaud Lepage-Jutier, Alexander Maloney
We consider theories of three dimensional quantum gravity in Anti-de Sitter space which possess massless higher-spin gauge symmetry. The perturbative spectrum of the theory include…
Holographic Symmetry-Breaking Phases in AdS/CFT
Nima Lashkari
In this note we study the symmetry-breaking phases of 3D gravity coupled to matter. In particular, we consider black holes with scalar hair as a model of symmetry-breaking phases o…
On primordial trispectrum from exchanging scalar modes in general multiple field inflationary models
Xian Gao, Chunshan Lin
We make an complementary investigation of the primordial trispectrum from exchanging intermediate scalar modes in multi-field inflation models with generalized kinetic terms. Toget…
Toward the Gravity Dual of Heterotic Small Instantons
Fang Chen, Keshav Dasgupta, Paul Franche +1
The question of what happens when the heterotic SO(32) instanton becomes small was answered sometime back by Witten. The heterotic theory develops an enhanced Sp(2k) gauge symmetry…
Bulk spectral functions in single and multi-scalar gravity duals
Todd Springer, Charles Gale, Sangyong Jeon
We examine two point correlation functions involving the trace of the energy momentum tensor in five dimensional gravity dual theories supported by one or more scalar fields. A pre…
Cosmological Perturbations in the "Healthy Extension'' of Horava-Lifshitz gravity
Alessandro Cerioni, Robert H. Brandenberger
We study linear cosmological perturbations in the ``healthy extension'' of Horava-Lifshitz gravity which has recently been analyzed \cite{BPS2}. We find that there are two degrees…