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15 papers · 2 filters
Effective action in a higher-spin background
Xavier Bekaert, Euihun Joung, Jihad Mourad
We consider a free massless scalar field coupled to an infinite tower of background higher-spin gauge fields via minimal coupling to the traceless conserved currents. The set of Ab…
Wronskian Solution for AdS/CFT Y-system
Nikolay Gromov, Vladimir Kazakov, Sebastien Leurent +1
Using the discrete Hirota integrability we find the general solution of the full quantum Y-system for the spectrum of anomalous dimensions of operators in the planar AdS5/CFT4 corr…
Imperfect Dark Energy from Kinetic Gravity Braiding
Cedric Deffayet, Oriol Pujolas, Ignacy Sawicki +1
We introduce a large class of scalar-tensor models with interactions containing the second derivatives of the scalar field but not leading to additional degrees of freedom. These m…
Particle Production near an AdS Crunch
Lorenzo Battarra, Thomas Hertog
We numerically study the dual field theory evolution of five-dimensional asymptotically anti-de Sitter solutions of supergravity that develop cosmological singularities. The dual t…
Local Observation in Eternal inflation
James Hartle, S. W. Hawking, Thomas Hertog
We consider landscape models that admit several regions where the conditions for eternal inflation hold. It is shown that one can use the no-boundary wave function to calculate sma…
EPRL/FK Group Field Theory
Joseph Ben Geloun, Razvan Gurau, Vincent Rivasseau
The purpose of this short note is to clarify the Group Field Theory vertex and propagators corresponding to the EPRL/FK spin foam models and to detail the subtraction of leading di…