Showing 2002 · hep-thShow all

23 papers · 2 filters

hep-th2002

Cosmological Billiards

T. Damour, M. Henneaux, H. Nicolai

It is shown in detail that the dynamics of the Einstein-dilaton-p-form system in the vicinity of a spacelike singularity can be asymptotically described, at a generic spatial point…

hep-th2002★ 2 cited

Fermionic Subspaces of the Bosonic String

Auttakit Chattaraputi, Francois Englert, Laurent Houart +1

A universal symmetric truncation of the bosonic string Hilbert space yields all known closed fermionic string theories in ten dimensions, their D-branes and their open descendants.…

hep-th2002★ 6 cited

Varying alpha and black hole entropy

Malcolm Fairbairn, Michel H. G. Tytgat

Recently it has been suggested that an increase in the fine structure constant alpha with time would decrease the entropy of a Reissner-Nordstrom black hole, thereby violating the…

hep-th2002★ 2 cited

Matrix String Theory on pp-waves

G. Bonelli

After a brief review on Matrix String Theory on flat backgrounds, we formulate matrix string models on different pp-wave backgrounds. This will be done both in the case of constant…

hep-th2002★ 1 cited

Phases of Braneworlds, Spinning D3-branes and Strongly-Coupled Gauge Theories

J. F. Vazquez-Poritz

A spinning nonextremal D3-brane undergoes a phase transition to a naked singularity which, from the braneworld point of view, corresponds to the apparent graviton speed passing fro…

hep-th2002★ 16 cited

Matrix String Models for Exact (2,2) String Theories in R-R Backgrounds

G. Bonelli

We formulate matrix string models on a class of exact string backgrounds with non constant RR-flux parameterized by a holomorphic prepotential function and with manifest (2,2) supe…

hep-th2002★ 205 cited

Tensor gauge fields in arbitrary representations of GL(D,R) : duality & Poincare lemma

Xavier Bekaert, Nicolas Boulanger

Using a mathematical framework which provides a generalization of the de Rham complex (well-designed for p-form gauge fields), we study the gauge structure and duality properties o…

hep-th2002★ 345 cited

E10 and a "small tension expansion" of M Theory

T. Damour, M. Henneaux, H. Nicolai

A formal ``small tension'' expansion of D=11 supergravity near a spacelike singularity is shown to be equivalent, at least up to 30th order in height, to a null geodesic motion in…

hep-th2002★ 15 cited

The bosonic mother of fermionic D-branes

Auttakit Chattaraputi, Francois Englert, Laurent Houart +1

We extend the search for fermionic subspaces of the bosonic string compactified on E8 X SO(16) lattices to include all fermionic D-branes. This extension constraints the truncation…

hep-th2002★ 85 cited

Einstein billiards and overextensions of finite-dimensional simple Lie algebras

Thibault Damour, Sophie de Buyl, Marc Henneaux +1

In recent papers, it has been shown that (i) the dynamics of theories involving gravity can be described, in the vicinity of a spacelike singularity, as a billiard motion in a regi…

hep-th2002★ 23 cited

Regular Poisson structures on massive non-rotating BTZ black holes

P. Bieliavsky, M. Rooman, Ph. Spindel

We revisit the non-rotating massive BTZ black hole within a pseudo-Riemannian symmetric space context. Using classical symmetric space techniques we find that every such space intr…

hep-th2002★ 3 cited

Gravitational Lorentz Violations from M-Theory

X. Bekaert, N. Boulanger, J. F. Vazquez-Poritz

In an attempt to bridge the gap between M-theory and braneworld phenomenology, we present various gravitational Lorentz-violating braneworlds which arise from p-brane systems. Lore…

hep-th2002★ 52 cited

Seiberg-Witten maps and noncommutative Yang-Mills theories for arbitrary gauge groups

Glenn Barnich, Friedemann Brandt, Maxim Grigoriev

Seiberg-Witten maps and a recently proposed construction of noncommutative Yang-Mills theories (with matter fields) for arbitrary gauge groups are reformulated so that their existe…

hep-th2002★ 15 cited

Thurston Geometries from Eleven Dimensions

J. Gegenberg, S. Vaidya, J. F. Vazquez-Poritz

In three dimensions, a `master theory' for all Thurston geometries requires imaginary flux. However, these geometries can be obtained from physical three-dimensional theories with…

hep-th2002★ 81 cited

Matrix Strings in pp-wave backgrounds from deformed Super Yang-Mills Theory

G. Bonelli

We formulate matrix models for strings in ten dimensional pp-wave backgrounds and for particles in eleven dimensional ones. This is done by first characterizing the deformations of…

hep-th2002★ 26 cited

Penrose Limits of Non-standard Brane Intersections

H. Lu, J. F. Vazquez-Poritz

The non-standard intersection of two 5-branes and a string can give rise to AdS_3\times S^3\times S^3\times S^1. We consider the Penrose limit of this geometry and study the supers…

hep-th2002★ 277 cited

Inflation from a Tachyon Fluid?

Malcolm Fairbairn, Michel H. G. Tytgat

Motivated by recent works of Sen and Gibbons, we study the evolution of a flat and homogeneous universe dominated by tachyon matter. In particular, we analyse the necessary conditi…

hep-th2002★ 15 cited

S^1-wrapped D3-branes on Conifolds

H. Lu, J. F. Vazquez-Poritz

We construct a D3-brane wrapped on S^1, which is fibred over the resolved conifold as its transverse space. Whereas a fractional D3-brane on the resolved conifold is not supersymme…

hep-th2002★ 10 cited

Resolution of Overlapping Branes

H. Lu, J. F. Vazquez-Poritz

We obtain singularity resolutions for various overlapping brane configurations, including those of two heterotic 5-branes, type II 5-branes or D4-branes. In these solutions, the ``…

hep-th2002★ 16 cited

Conformal (super)gravities with several gravitons

Nicolas Boulanger, Marc Henneaux, Peter van Nieuwenhuizen

We construct consistent interacting gauge theories for M conformal massless spin-2 fields ("Weyl gravitons") with the following properties: (i) in the free limit, each field fulfil…

hep-th2002★ 2 cited

Rotational Graviton Modes in the Brane World

J. F. Vazquez-Poritz

For a brane world embedded in various ten or eleven-dimensional geometries, we calculate the corrections to the four-dimensional gravitational potential due to graviton modes propa…

hep-th2002★ 17 cited

Seiberg-Witten maps in the context of the antifield formalism

G. Barnich, F. Brandt, M. Grigoriev

The formulation of Seiberg-Witten maps from the point of view of consistent deformations of gauge theories in the context of the Batalin-Vilkovisky antifield formalism is reviewed.…

hep-th2002★ 227 cited

Black holes and asymptotics of 2+1 gravity coupled to a scalar field

Marc Henneaux, Cristian Martinez, Ricardo Troncoso +1

We consider 2+1 gravity minimally coupled to a self-interacting scalar field. The case in which the fall-off of the fields at infinity is slower than that of a localized distributi…