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In this paper we consider $(n+1)$-dimensional cosmological model with scalar field and antisymmetric $(p+2)$-form. Using an electric composite $Sp$-brane ansatz the field equations for the original system reduce to the equations for a…

General Relativity and Quantum Cosmology · Physics 2007-05-23 V. D. Ivashchuk , D. Singleton

A (n+1)-dimensional cosmological model with a set of scalar fields and antisymmetric (p+2)-form is considered. Some of scalar fields may have negative kinetic terms, i.e. they may describe ``phantom'' fields. For certain odd dimensions (D =…

High Energy Physics - Theory · Physics 2007-05-23 H. Dehnen , V. D. Ivashchuk , V. N. Melnikov

In this paper we consider (n+1)-dimensional cosmological model with scalar field and antisymmetric (p+2)-form. Using an electric composite Sp-brane ansatz the field equations for the original system reduce to the equations for a Toda-like…

High Energy Physics - Theory · Physics 2008-11-26 V. D. Ivashchuk , D. Singleton

We find a general p-1-brane solution to supergravity coupled to a p+1-form field strength using the ``standard ansatz'' for the fields. In addition to the well-known elementary and solitonic p-1-brane solutions, which are the only ones…

High Energy Physics - Theory · Physics 2009-10-30 Anna Tollsten

We present a general method for constructing supergravity solutions for intersecting branes. The solutions are written in terms of a single function, which is the solution to a nonlinear differential equation. We illustrate this procedure…

High Energy Physics - Theory · Physics 2010-02-03 Arvind Rajaraman

It has been shown that membranes and fivebranes are wave-like or monopole-like solutions in some higher dimensional theory. Here the picture is completed by combining the wave and monopole solutions into a single solution of Exceptional…

High Energy Physics - Theory · Physics 2015-10-29 David S. Berman , Felix J. Rudolph

We generalize the previously studied cosmological solutions in D-dimensional gravity with an antisymmetric (p+2)-form to the case when the spatial part of the metric is Ricci-flat rather than flat. These generalized solutions are…

General Relativity and Quantum Cosmology · Physics 2008-11-26 I. S. Goncharenko , V. D. Ivashchuk , S. Rudametkin-Aguilar , D. Singleton

We describe a simple method for generating new string solutions for which the brane worldvolume is a curved space. As a starting point we use solutions with NS-NS charges combined with 2-d CFT's representing different parts of space-time.…

High Energy Physics - Theory · Physics 2009-09-17 G. Papadopoulos , J. Russo , A. A. Tseytlin

We investigate the geometrical properties of static vacuum $p$-brane solutions of Einstein gravity in $D=n+p+3$ dimensions, which have spherical symmetry of $S^{n+1}$ orthogonal to the $p$-directions and are invariant under the translation…

General Relativity and Quantum Cosmology · Physics 2009-07-31 Gungwon Kang , Hyeong-Chan Kim , Jungjai Lee

We present warped metrics which solve Einstein equations with arbitrary cosmological constants in both in upper and lower dimensions. When the lower-dimensional metric is the maximally symmetric one compatible with the chosen value of the…

High Energy Physics - Theory · Physics 2009-10-31 N. Alonso-Alberca , P. Meessen , T. Ortin

We use a simple algebraic method to find a special class of composite p-brane solutions of higher dimensional gravity coupled with matter. These solutions are composed of n constituent p-branes corresponding n independent harmonic…

High Energy Physics - Theory · Physics 2009-10-30 I. Aref'eva , A. Volovich

Modifications to the singularity structure of D3-branes that result from turning on a flux for the R-R and NS-NS 3-forms (fractional D3-branes) provide important gravity duals of four-dimensional N=1 super-Yang-Mills theories. We construct…

High Energy Physics - Theory · Physics 2009-09-17 M. Cvetic , H. Lu , C. N. Pope

We construct new D-brane bound states using charged macroscopic type IIB string solutions.A generic bound state solution, when dimensionally reduced, carries multiple gauge charges. Starting with D=9 charged macroscopic strings, we obtain…

High Energy Physics - Theory · Physics 2009-11-07 Alok Kumar , Sudipta Mukherji , Kamal L. Panigrahi

Five-brane distributions with no strong coupling problems and high symmetry are studied. The simplest configuration corresponds to a spherical shell of branes with S^3 geometry and symmetry. The equations of motions with delta-function…

High Energy Physics - Theory · Physics 2011-07-19 E. Kiritsis , C. Kounnas , P. M. Petropoulos , J. Rizos

We extend a recently discovered, non-singular 6 dimensional brane, solution to D=4+n dimensions. As with the previous 6D solution the present solution provides a gravitational trapping mechanism for fields of spin 0, 1/2, 1 and 2. There is…

High Energy Physics - Theory · Physics 2009-11-10 Douglas Singleton

Growing non-singular solution of 6-dimensional Einstein equations for the 4-brane in infinite transversal 2-space is found. This solution provides gravitational trapping of matter and 4-dimensional gravity on the brane without extra…

High Energy Physics - Phenomenology · Physics 2009-10-31 Merab Gogberashvili , Paul Midodashvili

In this paper we generalize electric S-brane solutions with maximal number of branes. Previously for the action containing D-dimensional gravity, a scalar field and antisymmetric (p+2)-form we found composite, electric S-brane solutions…

High Energy Physics - Theory · Physics 2008-11-26 V. D. Ivashchuk , V. N. Melnikov , D. Singleton

We find broad classes of solutions to the field equations for d-dimensional gravity coupled to an antisymmetric tensor of arbitrary rank and a scalar field with non-vanishing potential. Our construction generates these configurations from…

High Energy Physics - Theory · Physics 2009-11-10 C. P. Burgess , C. Nunez , F. Quevedo , G. Tasinato , I. Zavala

An S-brane solution with two non-composite electric branes and a set of l scalar fields is considered. The intersection rule for branes corresponds to the Lie algebra A_2. The solution contains five factor spaces with the fifth one…

General Relativity and Quantum Cosmology · Physics 2008-11-26 J. -M. Alimi , V. D. Ivashchuk , V. N. Melnikov

We consider the equations of motion of the non-abelian 5-branes theory recently constructed in http://arxiv.org/abs/arXiv:1203.4224 and find exact string solutions both for uncompactified and compactified spacetime. Although one does not…

High Energy Physics - Theory · Physics 2015-06-05 Chong-Sun Chu , Sheng-Lan Ko , Pichet Vanichchapongjaroen
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