Investigating Brane Resolution With Perturbative Dynamics
高能物理 - 理论
2010-02-03 v2
摘要
We investigate the transition between singular and non-singular geometries from the vantage point of perturbative field dynamics. In particular, we obtain the closed-form absorption probability for minimally-coupled massless scalars propagating in the background of a heterotic 5-brane on a Taub-NUT instanton. This is an exact calculation for arbitrary incident frequencies. For the singular geometry, the absorption probability vanishes when the frequency is below a certain threshold, and for the non-singular case it vanishes for all frequencies. We discuss the connection between this phenomenon and the behavior of geodesics in this background. We also obtain exact quasinormal modes.
引用
@article{arxiv.hep-th/0110085,
title = {Investigating Brane Resolution With Perturbative Dynamics},
author = {J. F. Vazquez-Poritz},
journal= {arXiv preprint arXiv:hep-th/0110085},
year = {2010}
}
备注
10 pages, LaTeX, references added