Emergent Gauge Fields in Holographic Superconductors (2010)
Domènech, Oriol, Montull, Marc, Pomarol, Alex, Salvio, Alberto, Silva, Pedro J.
Holographic superconductors have been studied so far in the absence of dynamical electromagnetic fields, namely in the limit in which they coincide with holographic superfluids. It is possible,...
An analysis of the phase space of Horava-Lifshitz cosmologies (2009)
Carloni, Sante, Elizalde, Emilio, Silva, Pedro J.
Using the dynamical system approach, properties of cosmological models based on the Horava-Lifshitz gravity are systematically studied. In particular, the cosmological phase space of the...
The Holographic Superconductor Vortex (2009)
Montull, Marc, Pomarol, Alex, Silva, Pedro J.
A gravity dual of a superconductor at finite temperature has been recently proposed. We present the vortex configuration of this model and study its properties. In particular, we calculate the free...
The M2/M5 BPS Partition Functions from Supergravity (2008)
In the framework of the AdS/CFT duality, we calculate the supersymmetric partition function of the superconformal field theories living in the world volume of either $N$ $M2$-branes or $N$...
Euclidean Methods and the entropy function (2008)
We review results of articles hep-th/0607056, hep-th/0610163 and 0704.1405 [hep-th]. Here we focus on establish the connection between the entropy functional formalism of Sen and the standard...
F(R) gravity equation of state (2008)
Elizalde, Emilio, Silva, Pedro J.
The ${\bf f}(R)$ gravity field equations are derived as an equation of state of local space-time thermodynamics. Jacobson's arguments are non-trivially extended, by means of a more general definition...
On Uniqueness of supersymmetric Black holes in AdS(5) (2007)
We study the possibility of having Black hole of spherical and ring horizon topology with five independent charges in the $U(1)^3$-model of 5D gauge supergravity. To study these possibilities we...
Euclidean analysis of the entropy functional formalism (2007)
Dias, Oscar J. C., Silva, Pedro J.
The attractor mechanism implies that the supersymmetric black hole near horizon solution is defined only in terms of the conserved charges and is therefore independent of asymptotic moduli. Starting...
Phase transitions and statistical mechanics for BPS Black Holes in AdS/CFT (2006)
Using the general framework developed in hep-th/0607056, we study in detail the phase space of BPS Black Holes in AdS, for the case where all three electric charges are equal. Although these solitons...
Thermodynamics at the BPS bound for Black Holes in AdS (2006)
In this work we define a new limiting procedure that extends the usual thermodynamics treatment of Black Hole physics, to the supersymmetric regime. This procedure is inspired on equivalent...
Rational foundation of GR in terms of statistical mechanic in the AdS/CFT framework (2005)
In this article, we work out the microscopic statistical foundation of the supergravity description of the simplest 1/2 BPS sector in the AdS(5)/CFT(4). Then, all the corresponding supergravity...
Revisiting the D1/D5 System or Bubbling in AdS_3 (2005)
In this article we study the relation between the bubbling construction and the Mathur's microscopic solutions for the D1/D5 system. We have found that the regular near horizon D1/D5 system (after...
Chronology Protection in anti-de Sitter (2004)
Caldarelli, Marco M., Klemm, Dietmar, Silva, Pedro J.
We consider 1/2 BPS excitations of AdS(5)xS(5) geometries in type IIB string theory that can be mapped into free fermion configurations according to the prescription of Lin, Lunin and Maldacena...
Quantum Polarization of D4-branes (2004)
Palmer, Belkis Cabrera, Marolf, Donald, Silva, Pedro J.
The low energy effective field theory of type II D4-branes coupled to bulk supergravity fields is used to investigate {\it quantum} effects for D4-branes in the D0 supergravity background....
Giant gravitons in AdS/CFT (I): matrix model and back reaction (2004)
Caldarelli, Marco M., Silva, Pedro J.
In this article we study giant gravitons in the framework of AdS/CFT correspondence. First, we show how to describe these configurations in the CFT side using a matrix model. In this picture, giant...
The explicit form of the effective action for F1 and D-branes (2004)
Marolf, Donald, Martucci, Luca, Silva, Pedro J.
In this work we consider the full interacting effective actions for fundamental strings and D-branes in arbitrary bosonic type II supergravity backgrounds. The explicit form of these actions is given...
Multi giant graviton systems, SUSY breaking and CFT (2004)
Caldarelli, Marco M., Silva, Pedro J.
In this article, we describe giant gravitons in AdS_5 x S^5 moving along generic trajectories in AdS_5. The giant graviton dynamics is solved by proving that the D3-brane effective action reduces to...
Kinky D-branes and straight strings of open string tachyon effective theory (2003)
Martucci, Luca, Silva, Pedro J.
In this letter we construct the kink D1-brane super D-helix solution and its T-dual the D2-brane supertube using the effective action of non-BPS tachyonic D-branes . In the limit of zero angular...
Actions and Fermionic symmetries for D-branes in bosonic backgrounds (2003)
Marolf, Donald, Martucci, Luca, Silva, Pedro J.
In this article we derive the full interacting effective actions for supersymmetric D-branes in arbitrary bosonic type II supergravity backgrounds. The actions are presented in terms of component...
Supertubes in reduced holonomy manifolds (2003)
Gomis, Joaquim, Mateos, Toni, Silva, Pedro J., Van Proeyen, Antoine
We show that the supertube configurations exist in all supersymmetric type IIA backgrounds which are purely geometrical and which have, at least, one flat direction. In other words, they exist in any...
Fermions, T-duality and effective actions for D-branes in bosonic backgrounds (2003)
Marolf, Donald, Martucci, Luca, Silva, Pedro J.
We find the effective action for any D-brane in a general bosonic background of supergravity. The results are explicit in component fields up to second order in the fermions and are obtained in a...
On type II superstrings in bosonic backgrounds: the role of fermions and T-duality (2003)
Martucci, Luca, Silva, Pedro J.
We derive the actions for type II Green-Schwarz strings up to second order in the fermions, for general bosonic backgrounds. We base our work on the so-called normal coordinate expansion. The...
YM on the dielectric brane: a D0-brane tale (2002)
Martucci, Luca, Silva, Pedro J.
In this letter we present a derivation, from the D0-brane picture, of the background monopole field and in general of the full dynamics of the Yang-Mills theory on the dielectric D2-brane of Myers....
String bits and the Myers effect (2002)
Based on the non-abelian effective action for D1-branes, a new action for matrix string theory in non-trivial backgrounds is proposed. Once the background fields are included, new interactions bring...
Obstruction to D-brane topology change (2002)
Alexanian, Garnik G., Balachandran, A. P., Silva, Pedro J.
A study of the relation between topology change, energy and Lie algebra representations for fuzzy geometry in connection to $M$-theory is presented. We encounter two different types of topology...
Stabilization of Hyperbolic Brane-World Scenarios (2002)
In this talk we consider the issue of stabilization of compact hyperbolic brane-world scenarios from the point of view of 4-dimensional effective theories. The idea is to clarify the status of...
Radion Stabilization in Compact Hyperbolic Extra Dimensions (2002)
Nasri, Salah, Silva, Pedro J., Starkman, Glenn D., Trodden, Mark
We consider radion stabilization in hyperbolic brane-world scenarios. We demonstrate that in the context of Einstein gravity, matter fields which stabilize the extra dimensions must violate the null...
Matrix string theory and the Myers effect (2001)
A new configuration of non-abelian D1-branes growing into D5-branes is found. This time the effect is triggered by a non-trivial electric field on the world-volume of the D1-branes and a constant RR...
Quantum Myers effect and its supergravity dual for D0/D4 systems (2001)
The presence of a distant D4-brane is used to further investigate the duality between M-theory and D0-brane quantum mechanics. A polarization of the quantum mechanical ground state is found. A...
Polarization of the D0 ground state in Quantum Mechanics and Supergravity (2001)
Marolf, Donald, Silva, Pedro J.
The presence of a distant D4-brane is used to further investigate the duality between M-theory and D0-brane quantum mechanics. Although the D4-brane background fields are not strong enough to induce...
Dielectric branes and spontaneous symmetry breaking (2000)
Gomez, Cesar, Janssen, Bert, Silva, Pedro J.
A stable non-commutative solution with symmetry breaking is presented for a system of Dp-branes in the presence of a RR (p+5)-form.
Curved dilatonic brane-worlds and the cosmological constant problem (2000)
Alonso-Alberca, Natxo, Janssen, Bert, Silva, Pedro J.
We construct a model for dilatonic brane worlds with constant curvature on the brane, i.e. a non-zero four-dimensional cosmological constant, given in function of the dilaton coupling and the...
Brane World with Bulk Horizons (2000)
Gomez, Cesar, Janssen, Bert, Silva, Pedro J.
A brane world in the presence of a bulk black hole is constructed. The brane tension is fine tuned in terms of the black hole mass and cosmological constant. Gravitational perturbations localized on...
T-duality and Gauge Theories from Near Horizon Dp-branes (1999)
We study the significance of T-duality in the context of the gravitational description of gauge theories. We found that T-duality relates the deferents points of the moduli of a given gauge theory...
T-duality and The Gravitational Description Of Gauge Theories (1999)
This is a review of some basic features on the relation between supergravity and pure gauge theories with special emphasis on the relation between T-duality and supersymmetry. Some new results...
On the relation of Matrix theory and Maldacena conjecture (1998)
We report a sign that M(atrix) theory conjecture and the Maldacena conjecture for the case of D0-branes are compatible. Furthermore Maldacena point of view implies a restriction of range of validity...
General D-branes solutions from string theory (1997)
We give the general solution for the elementary and solitonic D-brane configurations as a result of a reinterpretation of the already known p-branes. These solutions are found by means of a relevant...
BRST Invariant Boundary Conditions for Gauge Theories (1996)
A systematic way of generating sets of local boundary conditions on the gauge fields in a path integral is presented. These boundary conditions are suitable for one--loop effective action...
Van Haaster, Daan J., Silva, Pedro J., Hagedoorn, Peter-Leon, Jongejan, Jaap A., Hagen, Wilfred R.
Pyrococcus furiosus has two types of NiFe-hydrogenases: a heterotetrameric soluble hydrogenase and a multimeric transmembrane hydrogenase. Originally, the soluble hydrogenase was proposed to be a new...