Showing 2013 · hep-thShow all

17 papers · 2 filters

hep-th2013★ 15 cited

BPS domain walls from backreacted orientifolds

Johan Blåbäck, Bert Janssen, Thomas Van Riet +1

Compactifications with D-brane and orientifold sources lead to standard gauged supergravity theories if the sources are smeared over the internal directions. It is therefore of int…

hep-th2013★ 109 cited

Mutual information after a local quench in conformal field theory

Curtis T. Asplund, Alice Bernamonti

We compute the entanglement entropy and mutual information for two disjoint intervals in two-dimensional conformal field theories as a function of time after a local quench, using…

hep-th2013★ 81 cited

On the Supersymmetric Completion of Gravity and Cosmology

Sergio Ferrara, Renata Kallosh, Antoine Van Proeyen

We revisit and clarify the supersymmetric versions of gravity, in view of the renewed interest to these models in cosmology. We emphasize that the content of the dual stan…

hep-th2013★ 47 cited

AdS vacua with scale separation from IIB supergravity

M. Petrini, G. Solard, T. Van Riet

Only two kinds of compactification are known that lead to four-dimensional supersymmetric AdS vacua with moduli stabilisation and separation of scales at tree-level. The most studi…

hep-th2013★ 4 cited

Fermions, Wigs, and Attractors

L. G. C. Gentile, P. A. Grassi, A. Marrani +1

We compute the modifications to the attractor mechanism due to fermionic corrections. In N=2, D=4 supergravity, at the fourth order, we find a new contribution to the horizon value…

hep-th2013★ 48 cited

Inhomogeneous holographic thermalization

V. Balasubramanian, A. Bernamonti, J. de Boer +6

The sudden injection of energy in a strongly coupled conformal field theory and its subsequent thermalization can be holographically modeled by a shell falling into anti-de Sitter…

hep-th2013★ 40 cited

Inhomogeneous Thermalization in Strongly Coupled Field Theories

V. Balasubramanian, A. Bernamonti, J. de Boer +6

To describe theoretically the creation and evolution of the quark-gluon plasma, one typically employs three ingredients: a model for the initial state, non-hydrodynamic early time…

hep-th2013★ 7 cited

Superconformal symmetry and higher-derivative Lagrangians

Antoine Van Proeyen

Superconformal methods are useful to build invariant actions in supergravity. We have a good insight in the possibilities of actions that are at most quadratic in spacetime derivat…

hep-th2013

Vector Fields in Holographic Cosmology

James B. Hartle, S. W. Hawking, Thomas Hertog

We extend the holographic formulation of the semiclassical no-boundary wave function (NBWF) to models with Maxwell vector fields. It is shown that the familiar saddle points of the…

hep-th2013★ 54 cited

Higher Spin de Sitter Holography from Functional Determinants

Dionysios Anninos, Frederik Denef, George Konstantinidis +1

We discuss further aspects of the higher spin dS/CFT correspondence. Using a recent result of Dunne and Kirsten, it is shown how to numerically compute the partition function of th…

hep-th2013★ 17 cited

Dualities Near the Horizon

Sergio Ferrara, Alessio Marrani, Emanuele Orazi +1

In 4-dimensional supergravity theories, covariant under symplectic electric-magnetic duality rotations, a significant role is played by the symplectic matrix M(ϕ), related to the c…

hep-th2013★ 15 cited

The quantization problem in Scherk-Schwarz compactifications

Mariana Graña, Ruben Minasian, Hagen Triendl +1

We re-examine the quantization of structure constants, or equivalently the choice of lattice in the so-called flat group reductions, introduced originally by Scherk and Schwarz. De…

hep-th2013★ 49 cited

Dirac-Born-Infeld-Volkov-Akulov and Deformation of Supersymmetry

Eric Bergshoeff, Frederik Coomans, Renata Kallosh +2

We deform the action and the supersymmetry transformations of the d=10 and d=4 Maxwell supermultiplets so that at each order of the deformation the theory has 16 Maxwell multiplet…

hep-th2013★ 302 cited

Implications of conformal invariance in momentum space

Adam Bzowski, Paul McFadden, Kostas Skenderis

We present a comprehensive analysis of the implications of conformal invariance for 3-point functions of the stress-energy tensor, conserved currents and scalar operators in genera…

hep-th2013

The spectral function in a strongly coupled, thermalising CFT

Alice Bernamonti, Ben Craps, Joris Vanhoof

In relation to the fluctuation-dissipation theorem, we discuss a time-dependent notion of spectral function and effective temperature. Extending recent results from arXiv:1212.6066…

hep-th2013★ 93 cited

Thermalization of the spectral function in strongly coupled two dimensional conformal field theories

V. Balasubramanian, A. Bernamonti, B. Craps +5

Using Wigner transforms of Green functions, we discuss non-equilibrium generalizations of spectral functions and occupation numbers. We develop methods for computing time-dependent…

hep-th2013★ 38 cited

Antibranes don't go black

I. Bena, J. Blåbäck, U. H. Danielsson +1

When D-branes are inserted in flux backgrounds of opposite charge, the resulting solution has a certain singularity in the fluxes. Recently it has been argued, using numerical solu…