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arXiv 0705.1238hep-th
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非超对称三电荷束缚态的几何

Geometry of non-supersymmetric three-charge bound states

Eric G. Gimon, Thomas S. Levi, Simon F. Ross

摘要:

我们研究了Jejjala,Madden,Ross和Titchener的光滑非超对称三电荷微观态[hep-th/0504181],使用Kaluza-Klein约化的解决方案,5和4维。我们的目的是提高我们的理解这些非超对称解决方案和研究的超对称情况之间的关系。我们发现了一些令人惊讶的质的差异。在五维描述中,解具有局部破坏超对称性的轨道不动点,因此几何不能被认为是由分离的半BPS中心组成的。在四维描述中,几何中的两个奇点由一个圆锥奇点连接,这使得不可能独立地处理它们,也不可能给这些中心分配明确的膜荷。

英文摘要:

We study the smooth non-supersymmetric three-charge microstates of Jejjala, Madden, Ross and Titchener [hep-th/0504181] using Kaluza-Klein reductions of the solutions to five and four dimensions. Our aim is to improve our understanding of the relation between these non-supersymmetric solutions and the well-studied supersymmetric cases. We find some surprising qualitative differences. In the five-dimensional description, the solution has orbifold fixed points which break supersymmetry locally, so the geometries cannot be thought of as made up of separate half-BPS centers. In the four-dimensional description, the two singularities in the geometry are connected by a conical singularity, which makes it impossible to treat them independently and assign unambiguous brane charges to these centers.

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