Asymmetric brane instantons

Details Asymmetric brane instantons Asymmetric brane instantons

2004-12-29

arxiv.org/abs/hep-th/0412317v3

Physics

High Energy Physics

High Energy Physics - Theory

This paper is heavily changed in the 2nd version which will appear in JHEP. Several references added, two authors joined. Henc

Scientific paper

We investigate all the brane instanton solutions--an Einstein brane inhabiting at different positions in 5-dimensional negative curvature Einstein bulk. We construct a brane instanton model consisting of a brane with asymmetric bulk along two sides of the brane. And the junction condition of the resulting space-time is analyzed in the frame of induced gravity. In spirits of quantum gravity of path integral formulism we calculate the Euclidean actions on three canonical paths and then compare the Euclidean actions of different instantons per unit 4-volume. We also compare the Euclidean actions per unit 4-volume of instantons consisting of a brane gluing a fixed half with other halves possessing different cosmological constants.

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