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13 papers · 2 filters
Properties of some conformal field theories with M-theory duals
Jerome P. Gauntlett, Eoin O Colgain, Oscar Varela
By studying classes of supersymmetric solutions of D=11 supergravity with AdS_5 factors, we determine some properties of the dual four-dimensional N=1 superconformal field theories…
Special geometry for arbitrary signatures
M. A. Lledo, O. Macia, A. Van Proeyen +1
In this paper we generalize special geometry to arbitrary signatures in target space. We formulate the definitions in a precise mathematical setting and give a translation to the c…
Black Hole evaporation in a thermalized final-state projection model
A. Fabbri, A. Perez
We propose a modified version of the Horowitz-Maldacena final-state boundary condition based upon a matter-radiation thermalization hypothesis on the Black Hole interior, which tra…
Short-distance contribution to the spectrum of Hawking radiation
I. Agullo, J. Navarro-Salas, Gonzalo J. Olmo +1
The Hawking effect can be rederived in terms of two-point functions and in such a way that it makes it possible to estimate, within the conventional semiclassical theory, the contr…
Aspects of D-brane Dynamics in Supergravity Backgrounds with Fluxes, Kappa-symmetry and Equations of Motion. Part IIB
Igor Bandos, Dmitri Sorokin
We derive and carry out a detailed analysis of the equations of motion of the type IIB D branes in generic supergravity backgrounds with fluxes making account of the worldvolume Bo…
On the absence of BPS preonic solutions in IIA and IIB supergravities
Igor A. Bandos, Jose A. de Azcarraga, Oscar Varela
We consider the present absence of 31 out of 32 supersymmetric solutions in supergravity i.e., of solutions describing BPS preons. A recent result indicates that (bosonic) BPS preo…