## Abstract

We investigate a creation of a brane world with a bulk scalar field. We consider an exponential potential of a bulk scalar field; V(φ) ∝ (-2βφ), where β is the parameter of the theory. This model is based on a supersymmetric theory, and includes Randall-Sundrum model (β = 0) and the 5-dimensional effective model of the Horva-Witten theory (β = 1). We show that for this potential a brane instanton is constructed only when a curvature of a brane vanishes, that is, the brane is flat. We construct an instanton with two branes and a singular instanton with a single brane. The Euclidean action of the singular instanton solution is finite if β^{2} > 2/3. We also calculate perturbations of the action around a singular instanton solution in order to show that the singular instanton is well-defined.

Original language | English |
---|---|

Pages (from-to) | 219-220 |

Number of pages | 2 |

Journal | Journal of Physics: Conference Series |

Volume | 31 |

Issue number | 1 |

DOIs | |

Publication status | Published - 2006 Mar 22 |

Externally published | Yes |

## ASJC Scopus subject areas

- General Physics and Astronomy