Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2003-05-23
JHEP 0308 (2003) 056
Physics
High Energy Physics
High Energy Physics - Theory
54 pages, 6 figures. Uses JHEP3. Published version
Scientific paper
10.1088/1126-6708/2003/08/056
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 the solution of a single nonlinear ordinary differential equation, whose form depends on the scalar potential. For an exponential potential we find solutions corresponding to brane geometries, generalizing the black p-branes and S-branes known for the case of vanishing potential. These geometries are singular at the origin with up to two (regular) horizons. Their asymptotic behaviour depends on the parameters of the model. When the singularity has negative tension or the cosmological constant is positive we find time-dependent configurations describing accelerating universes. Special cases give explicit brane geometries for (compact and non-compact) gauged supergravities in various dimensions, as well as for massive 10D supergravity, and we discuss their interrelation. Some examples lift to give new solutions to 10D supergravity. Limiting cases with a domain wall structure preserve part of the supersymmetries of the vacuum. We also consider more general potentials, including sums of exponentials. Exact solutions are found for these with up to three horizons, having potentially interesting cosmological interpretation. We give several additional examples which illustrate the power of our techniques.
Burgess Cliff P.
Nunez Carlos
Quevedo Fernando
Tasinato Gianmassimo
Zavala Ivonne
No associations
LandOfFree
General Brane Geometries from Scalar Potentials: Gauged Supergravities and Accelerating Universes does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with General Brane Geometries from Scalar Potentials: Gauged Supergravities and Accelerating Universes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and General Brane Geometries from Scalar Potentials: Gauged Supergravities and Accelerating Universes will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-427168