Recently, solutions of the Born-Infeld theory representing strings emanating from a Dirichlet p-brane have been constructed. We discuss the embedding of these Born-Infeld solutions into the non-abelian theory appropriate to multiple overlapping p-branes. We also prove supersymmetry of the solutions explicitly in the full nonlinear theory. We then study transverse fluctuations, both from the wor...

We describe, on a few instructive examples, a systematic way of deducing the superfield equations of motion of superbranes in the approach of partial breaking of global supersymmetry (PBGS) from the nonlinear-realizations formalism. For D-branes these equations simultaneously represent the appropriate supersymmetric Born-Infeld theories. We also discuss how to construct an off-shell superfield ...

By performing a derivative expansion on a class of boosted Born-Infeld-AdS5 black branes, we study the hydrodynamics of the dual field theory in the spirit of AdS/CFT correspondence. We determine the fluid dynamical stress-energy tensor to first order, and find that the ratio of the shear viscosity to entropy density conforms to the universal value of 1/4π to all orders of the inverse of the Bo...

By performing a derivative expansion on a class of boosted Born-Infeld-AdS5 black branes, we study the hydrodynamics of the dual field theory in the spirit of AdS/CFT correspondence. We determine the fluid dynamical stress-energy tensor to first order, and find that the ratio of the shear viscosity to entropy density conforms to the universal value of 1/4π to all orders of the inverse of the Bo...

Locally concentrated solutions in the Born{Infeld theory are presented. In particular, existence and uniqueness theorems are established for multicentered magnetic string solutions induced from a Higgs eld over a closed Riemann surface or an Euclidean plane. On any given compact surface, the Born{Infeld parameter may be adjusted under a necessary and suucient condition to allow the existence of...

We study N = 2 supersymmetric Born-Infeld-Higgs theory in 3 dimensions and derive Bogomol’nyi relations in its bosonic sector. A peculiar coupling between the Higgs and the gauge field (with dynamics determined by the Born-Infeld action) is forced by supersymmetry. The resulting equations coincide with those arising in the MaxwellHiggs model. Concerning Bogomol’nyi bounds for the vortex energy,...

We show that electrically charged solutions within the Eddington-inspired Born-Infeld theory of gravity replace the central singularity by a wormhole supported by the electric field. As a result, the total energy associated with the electric field is finite and similar to that found in the Born-Infeld electromagnetic theory. When a certain charge-to-mass ratio is satisfied, in the lowest part o...

We use the black hole entropy function to study the effect of Born-Infeld terms on the entropy of extremal black holes in heterotic string theory in four dimensions. We find that the Born-Infeld terms are capable of stretching the horizon of a small black hole, only after the addition of a set of higher curvature terms. We add Gauss-Bonnet terms to the effective action and study the solutions o...

We construct partially localized supergravity counterpart solutions to the 1/2 supersymmetric nonthreshold and the 1/4 supersymmetric threshold bound state BI dyons in the D3-brane Dirac-Born-Infeld theory. Such supergravity solutions have all the parameters of the BI dyons. By applying the type-IIA–type-IIB T-duality transformations to these supergravity solutions, we obtain the supergravity c...

The action of four-dimensional Horndeski gravity coupled to Born-Infeld electromagnetic fields is given via the Kaluza-Klein process. Dyonic black hole solution theory constructed. metric devoid singularity at origin independent parameter selections, this property different from one Einstein-Born-Infeld holes. Thermodynamics studied, thermodynamic quantities are calculated and first law checked...