Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2005-01-17
Phys.Rev.Lett.94:131602,2005
Physics
High Energy Physics
High Energy Physics - Theory
RevTex, 4 pages, 1 figure, typos and minor errors corrected
Scientific paper
10.1103/PhysRevLett.94.131602
We obtain an exact solution of the supergravity equations of motion in which the four-dimensional observed universe is one of a number of colliding D3-branes in a Calabi-Yau background. The collision results in the ten-dimensional spacetime splitting into disconnected regions, bounded by curvature singularities. However, near the D3-branes the metric remains static during and after the collision. We also obtain a general class of solutions representing $p$-brane collisions in arbitrary dimensions, including one in which the universe ends with the mutual annihilation of a positive-tension and negative-tension 3-brane.
Gibbons Gary W.
Lu Hai
Pope Christopher N.
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