301 citations · 3.3k across the 70 of their papers we have counts for
17 papers · 1 filter
Particle production from inhomogeneities: general metric perturbations
Raghuveer Garani, Michele Redi, Andrea Tesi
We present universal formulas for particle production from gravitational inhomogeneities. In the massless limit the result is strikingly simple and completely determined by the two…
Gauge Boson Mass Generation in AdS4
Riccardo Rattazzi, Michele Redi
We investigate the role of boundary conditions in gauge theories in AdS4. The presence of the boundary can break the gauge symmetry consistently with AdS4 isometries. We show that,…
Gaugino mass in AdS space
Ben Gripaios, Hyung Do Kim, Riccardo Rattazzi +2
We study supersymmetric QED in AdS4 with massless matter. At 1-loop the ultra-violet regulator of the theory generates a contribution to the gaugino mass that is naively inconsiste…
Non Pauli-Fierz Massive Gravitons
Gia Dvali, Oriol Pujolas, Michele Redi
We study general Lorentz invariant theories of massive gravitons. We show that, contrary to the standard lore, there exist consistent theories where the graviton mass term violates…
Gravity Cutoff in Theories with Large Discrete Symmetries
Gia Dvali, Michele Redi, Sergey Sibiryakov +1
We set an upper bound on the gravitational cutoff in theories with exact quantum numbers of large N periodicity, such as Z_N discrete symmetries. The bound stems from black hole ph…
Cascading DGP
Claudia de Rham, Gia Dvali, Stefan Hofmann +4
We present a higher codimension generalization of the DGP scenario which, unlike previous attempts, is free of ghost instabilities. The 4D propagator is made regular by embedding o…
Black Hole Bound on the Number of Species and Quantum Gravity at LHC
Gia Dvali, Michele Redi
In theories with a large number N of particle species, black hole physics imposes an upper bound on the mass of the species equal to M_{Planck}/\sqrt{N}. This bound suggests a nove…
Expanding F-Theory
Matthew Kleban, Michele Redi
We construct a general class of new time dependent solutions of non-linear sigma models coupled to gravity. These solutions describe configurations of expanding or contracting codi…
Consistent Lorentz Violation in Flat and Curved Space
Gia Dvali, Oriol Pujolas, Michele Redi
Motivated by the severity of the bounds on Lorentz violation in the presence of ordinary gravity, we study frameworks in which Lorentz violation does not affect the spacetime geome…
Supersymmetry Breaking and Moduli Stabilization in AdS
Andrey Katz, Michele Redi, Yael Shadmi +1
We study the one loop effective potential for the radion superfield in the supersymmetric Randall-Sundrum scenario with detuned brane tensions. At the classical level the distance…
Cosmic D-strings as Axionic D-term Strings
Jose J. Blanco-Pillado, Gia Dvali, Michele Redi
In this work we derive non-singular BPS string solutions from an action that captures the essential features of a D-brane-anti-D-brane system compactified to four dimensions. The m…
Footballs, Conical Singularities and the Liouville Equation
Michele Redi
We generalize the football shaped extra dimensions scenario to an arbitrary number of branes. The problem is related to the solution of the Liouville equation with singularities an…
Radion effective theory in the detuned Randall-Sundrum model
Jonathan Bagger, Michele Redi
We compute the two-derivative low-energy effective action for the radion in the (supersymmetric) Randall-Sundrum scenario with detuned brane tensions. At the classical level, a pot…
Supersymmetry breaking by Wilson lines in AdS
Jonathan Bagger, Michele Redi
In the Randall-Sundrum compactification of AdS with detuned brane tensions, supersymmetry can be spontaneously broken by a non-trivial Wilson line for the graviphoton. The supe…
Spin and a Running Radius in RS1
Adam Lewandowski, Michele Redi
We develop a renormalization group formalism for the compactified Randall-Sundrum scenario wherein the extra-dimensional radius serves as the scaling parameter. Couplings on the hi…
Brane running and AdS/CFT
Michele Redi
We extend the formalism introduced in the paper hep-th/0209050 to compute correlation functions in the AdS/CFT correspondence. We show how the on-shell action of a scalar field in…
Tachyons in a slice of AdS
A. Delgado, M. Redi
Stability of AdS space allows scalar fields to have negative mass squared as long as the Breitenlohner-Freedman bound is satisfied. In a compactification of AdS instead, to avoid i…