D-Brane Bound States Redux
摘要
We study the existence of D-brane bound states at threshold in Type II string theories. In a number of situations, we can reduce the question of existence to quadrature, and the study of a particular limit of the propagator for the system of D-branes. This involves a derivation of an index theorem for a family of non-Fredholm operators. In support of the conjectured relation between compactified eleven-dimensional supergravity and Type IIA string theory, we show that a bound state exists for two coincident zero-branes. This result also provides support for the conjectured description of M-theory as a matrix model. In addition, we provide further evidence that there are no BPS bound states for two and three-branes twice wrapped on Calabi-Yau vanishing cycles.
引用
@article{arxiv.hep-th/9705046,
title = {D-Brane Bound States Redux},
author = {Savdeep Sethi and Mark Stern},
journal= {arXiv preprint arXiv:hep-th/9705046},
year = {2009}
}
备注
42 pages, harvmac; references altered and a typo is corrected