- Centre National de la Recherche ScientifiqueFR1.6k papers
- Columbia UniversityUS1.5k papers
- Lawrence Berkeley National LaboratoryUS1.5k papers
- University of ArizonaUS1.5k papers
- Courant Institute of Mathematical SciencesUS1.4k papers
- University of ChicagoUS1.4k papers
- The Ohio State UniversityUS1.4k papers
- Brookhaven National LaboratoryUS1.3k papers
- University of MichiganUS1.3k papers
- University of WashingtonUS1.3k papers
- University of California, IrvineUS1.3k papers
- The University of TokyoJP1.3k papers
18 papers · 2 filters
On Theta Dependence of Glueballs from AdS/CFT
Gregory Gabadadze, Alberto Iglesias
We study the theta dependence of the glueball spectrum in a strongly coupled cousin of large N gluodynamics defined via the AdS/CFT correspondence. By explicitly diagonalizing the…
Lorentz-violating massive gauge and gravitational fields
Gregory Gabadadze, Luca Grisa
We study nonlinear dynamics in models of Lorentz-violating massive gravity. The Boulware-Deser instability restricts severely the class of acceptable theories. We identify a model…
Ghost Constraints on Modified Gravity
Alvaro Nunez, Slava Solganik
We show that general infrared modifications of the Einstein-Hilbert action obtained by addition of curvature invariants are not viable. These modifications contain either ghosts or…
Metastable gravity on classical defects
Christophe Ringeval, Jan-Willem Rombouts
We discuss the realization of metastable gravity on classical defects in infinite-volume extra dimensions. In dilatonic Einstein gravity, it is found that the existence of metastab…
Large Hierarchies from Attractor Vacua
Gia Dvali
We discuss a mechanism through which the multi-vacua theories, such as String Theory, could solve the Hierarchy Problem, without any UV-regulating physics at low energies. Because…
Stability in Asymptotically AdS Spaces
M. Kleban, M. Porrati, R. Rabadan
We discuss two types of instabilities which may arise in string theory compactified to asymptotically AdS spaces: perturbative, due to discrete modes in the spectrum of the Laplaci…