arXiv 0705.37092007-05hep-th

关于膜-反膜力

On Brane-Antibrane Forces

J. X. Lu, Bo Ning, Shibaji Roy, Shan-Shan Xu

备注：: 15 pages, improved discussions on results obtained, version to appear in JHEP
发表信息：: JHEP 0708:042,2007
DOI：: 10.1088/1126-6708/2007/08/042

摘要：

本文将讨论膜-反膜力的两个方面。一方面，我们将Banks和Susskind的D 0- ${\bar {\rm D}}$ 0的力计算推广到$1\le p \leq 8$的Dp- ${\bar {\rm D}}p$。特别是，我们发现，力也是发散的p = 1，而对于其他情况下（$p \ge 2$）的部队一般是有限的，当$Z \to 0^+$，其中$Z = \frac{Y^2}{2π^2α'} - 1$与Y，膜-反膜分离。然而，在Z < 0的情况下，所有的力都是发散的，这表明在这个区域发生了开弦快子凝聚。另一个是关于超引力膜-反膜结构令人困惑的静态性质。我们将证明当膜探针位于重合的膜-反膜位置时，膜-反膜背景对膜探针的作用力为零，从而为超引力近似下一般静态膜-反膜组态的存在提供了直接证据。

英文摘要：

In this note, we will discuss two aspects of brane-antibrane forces. In one aspect, we generalize the force calculation of D0-${\bar {\rm D}}$0 of Banks and Susskind to Dp-${\bar {\rm D}}p$ for $1\le p \leq 8$. In particular, we find that the force is also divergent for p = 1 while for the other cases ($p \ge 2$) the forces are in general finite when $Z \to 0^+$, where $Z = \frac{Y^2}{2π^2α'} - 1$ with Y, the brane-antibrane separation. However, the forces are divergent for all cases when Z < 0, signalling the occurrence of open string tachyon condensation in this regime. The other deals with the puzzling static nature of the supergravity brane-antibrane configurations. We will show that the force on a brane probe due to a brane-antibrane background vanishes when the probe is placed at the location of the coincident brane-antibranes, thereby providing a direct evidence for the existence of general static brane-antibrane configuration in the supergravity approximation.

机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。

摘要：

英文摘要：

相关论文